Borders closed. The city of lights under siege. This is an attack on all of humanity. President obama offering our support standing with the french as security is stepped up in cities all across america on alert at stadiums across the country. A special edition of Good Morning America starts now. And good morning, america. Our hearts and minds with paris this morning, a city under siege. After a night of unimaginable terror and there you see the scenes. People running out of that concert hall after it was besieged by attackers with suicide vests and kalashnikov machine guns. Police in the street ss. So many terrorized by those attackers yesterday. And you are looking at the streets of paris this morning, all of france is in a state of emergency right now. The second major terror attack there this year and yesterday it was the deadliest day in france since world war ii. Now, isis is claiming responsibility. This morning, the french president , Francois Hollande, calling it an act of war by a terrorist army saying france will defeat isis and will triumph from this savagery. The terrorists hit six separate locations, you see them there, including that stadium where the explosions were heart, the bataclan theatre where the hostages were held and four restaurants and 127 people dead. That number likely to climb. Many more injured. Eight terrorists killed. Seven of them by suicide vests, and we learned a syrian passport was found on the body of one of the attackers. Matt gutman is on the scene for us and starts us off. Good morning, matt. Reporter hey, good morning, paul l. A. Want to give you a sense of the chaos on this street. Right off the site of that most heinous of those six attacks you can probably see that tour bus right there, the black tour bus, that belonged to the eagles of death metal, now, that was where the theater was and after the siege went in and our team heard about 12 explosions, gunfire and then people started to be lowered by rescuers, the dead, the wounded from the second floor to the ground floor. A makeshift hospital was set up at a cafe nearby and as that was happening people were running down this very street blood smearing their clothes panicked looking for some sort of help. Terrified fans fleeing the bataclan concert hall. Bystanders rushing to help the badly injured, carrying some by their airports and legs. Others dropping from balconies. The most devastating of the nights sixth nearly simultaneous attacks a small venue one of the most popular parts of the city. Inside a reportedly sold out crowd who came to see the american rock band eagles of death metal. The drummers brother saying the band was only six songs into their set when gunfire erupted. It was so loud, it was louder than the band and they all hit the stage floor and as we got up to try to evacuate, they saw men with machine guns just shooting anything and everything. Reporter shortly before 9 00 p. M. , four heavily armed gunmen opened fire outside the venue shooting at random. I saw people starting to panic. People were running away. Reporter minutes later at the assailants stormed the theater. According to survivors, firing their ak47s nonstop for a period of 10 to 15 minutes stopping only to reload their weapons. Inside, others finding places to hide. Witnesses report hearing the gunmen shout allahu akbar. Police say more than 100 trapped as hostages for three hours. Shortly after midnight armed officers storming the concert hall. Amid the incredible loss of life, rescuers helping 40 people to safety before attackers among the dead inside the theater. Three of them killed by their own suicide belts. Three explosions ringing out match. The crowd started moving. Everyone started panicking. It was impossible to leave. The trains were blocked. People everywhere. Its very stressful. Reporter like the other targets across the city, not a state building or pop hour Tourist Destination but bars and restaurants. This one a cambodian restaurant, next door, le carillon. I see police with guns huddled behind vans and then dozens of firefighters swarmg the scene blocking off the roads. Reporter casual friday evenings, people enjoying nights with family and friends turning to what would become a horrific scene. I realize she wasnt breathing. It was really awful, really awful. Reporter in a city known for its lowkey security response, this area was crawling with actual military troops and the medical response to this disaster last night was unprecedented. Paul and george. Lets bring in brian ross. Now you found that passport. An important clue, a syrian passport found on the body of one of the attackers. And, brian, right now, they think theyve gotten all eight of thing thatters. Thats what the French Police say but they have a huge search going on for possible accomplices. There certainly were aecom polices. Who provided them with the weapon s weapons, the vehicles. One big question, was this something inspired by isis and coordinated all inside france or was there outside direction . The french president alleges it was coordinated outside. S of it planned outside and these attackers were sent in. They chose the site because the game between france and germany represented their enemyies and the rock band was a party of perversity. This appears to the third major attack by isis in just the last two weeks. Thats right. There was the bombing of the russian jet, the bombs in beirut and this, a wave of terror. Isis claimed responsibility for all three attacks. Moments ago i spoke with a witness inside that bataclan theatre. Ginny, thanks for joining us. Balcony inside that concert hall. Yeah, i was in the venue. What happened . I dont know what to say. I was there. We heard shots right we were in the middle of the concert, you know, the band was playing. It was great, there was a good atmosphere, we were having fun mentioned before, i didnt believe it at first. I thought it was a joke. I thought, whats going on because i didnt see the shots. I just heard them and having never been under attack in my think it was actually real gunshots and then all of a sudden people started screaming and thats when we realized with my two friends that we had to get out and we started ducking, you know, hiding behind the seats and getting down and luckily near to where we were, there was a safety exit and we managed to get into the staircase of that safety exit. We were there for about 30 seconds to a minute before opening the doors because i think they were outside in the streets when we got out and then the doors opened and somebody said its safe. We can get out and we all ran and it was before you got out what could you see of what was happening . Yeah, thats the thing. Because they started downstairs, obviously because, you know, they came in i think they came in with they ran a car into the entrance, im not sure, i think i heard that. They started shooting downstairs so i didnt see i didnt see the people shooting. I didnt see the, you know, the kind of fire that the kalashnikovs gives off, i suppose. I dont know. All i heard was a shooting but it was like continuous shooting it was like bang, bang, bang. How long did it go on . It went on for awhile. They were just shooting. They just didnt stop. Obviously, you know, they just wanted to kill as many people as possible. It must have been so horrifying. It was yeah, its horrible. I was very chilled last night. I mean, i had loads of alcohol. Im a bit less chilled today. I feel i swoek up this morning feeling, yeah, my you know, i felt i was yeah, i feel quite horrible. I dont know. Im trying to keep it all together because i think i wont stop so im trying to maintain a cool attitude but i feel very distressed because i knew people there, some of the people shot, not people i know personally but people of people who know i mean, just various acquaintances. Its just sad that this would happen in a place where people music, you know, its just its depressing. And whats it like in paris this morning . I dont know. I havent been out yet. Im going to go out later because i want to join my family in burgundy so i should be getting a train hopefully, being. Well see, but i havent been out yet so i dont know what the atmosphere is like in paris. I dont think its very rosy and happy. I think people are staying indoors. I imagine so. Ginny watson, thanks so much for your time. Thank you. So much horror to absorb right there. Theyre just faced with such a devastating reality today, george. A terrifying night for the city of paris. This morning, theyre waking up in shock and people are watching all over the world. We spoke with several other survivors besides ginny who witnessed that carnage. We were walking and we heard a handful of gunshots. We heard a bunch of gunshots. Then there was kind of a pause and there were a few more. And police crouched behind like the doorways and trees. I dont think anybody really understood what was going on. You could hear the gunshots again and again, and we waited for the terrorists to reload again their weapons. We turn around and ran for our lives. There was lines of ambulances and ambulances running by. Somebody saw a body lying in the street. I saw a couple of people wounded. I saw this one girl with a wound in her thigh. So, everybody at that point lying on the floor to escape the bullets. And we just stood there in silence. I pray for the victims and for the families. Most of them died meters away from me. Some of them on me. So i pray for them. Somber words there and abcs terry moran is on the streets there. Indoor, correct . Reporter that is true, paula and, in fact, a word that comes to mind here in paris is a word you never associate with this city, subdued. Traffic is like many people have stayed inside. It seems. Those who are out are speaking in quiet tones and even it seems not running and hustling around. This is a city as you have heard in shock and here on what on any given is one of the brightest and liveliest of the streets of paris there are pools of blood, dried blood on this street and the memorials have already begun. In the middle of all this, parisians nevertheless have a sense this is a grim expectation that has been fulfilled. The attacks on Charlie Hebdo and elsewhere earlier this year set this city on edge waiting for the next blow to fall. It has in the most horrible fashion. And yet in the middle of all of it, they are pulling together. There was that Movement Last night online to open the doors, your own doors of your homes to people who needed to stay who couldnt get across town given the chaos here and even here on this street. A little bit earlier a man brought out a piano and started playing just to try to calm the nerves and the situation, bring a note of beauty and peace to this scene of carnage, george. Okay, terry, thanks very much. As you said second major attack in the last ten month, want to bring in our chief Global Affairs correspondent martha raddatz. We heard the french president this morning blame isis, declare war. Reporter he did. He said this was an act of war and when faced with war, the country must take appropriate decisions. It was a reminder when bush said we will have a global war on terror shortly after 9 11 so you have to wonder what the approach of the french will be. Will they approach this militarily or from a Law Enforcement angle . Right now the french had been conducting air strikes in syria, them. Will they do more . Will the u. S. Do more . The response is what we are truly watching today. The french president seemed to reach a conclusion this was directed and prepared overseas. Yeah, he made that 125i789 too as well, planned from outside with outside complicity establish. So, who planned this . Are they in syria . Are they in iraq . We have al baghdadi in iraq in mosul that city he has held well over a year and fallujah there, as well, so there are definitely heads of isis but whether they were involved in this, we just dont know. We have eight individuals, sort of a pack of lone wolves perhaps or there was some sort of command and control. Someone from outside and the french clearly think that at this point or i dont think the president would have said this. That its somehow outside is somehow coordinating and telling what we do know, martha, isis has been gaining strength, strongholds in syria, strongholds in iraq. You were recently in afghanistan. Isis gaping strength there, as well. Huge escalation across the region and beyond in afghanistan, the commander there told me isis has become a real problem there. Theyve seen them pop up around the country, whether theyre just inspired, whether they want to be part of that hideous team of isis and think theyre winners, thats a question theyre asking themself, as well. But iraq, as well. I mean, i was over there in january of 2014 and the ambassador there then was so concerned about isis and six months later they moved in and they took the city of mosul and still hold that today. Thanks very much. Lets go to the white house, jon karl is there and, jon karl, we saw the president come out shortly after the attacks and say we would do whatever it takes to help our oldest ally. Reporter absolutely and all of the although the president wouldnt say who was responsible, even today the United States, white house not ready to say they believe it was isis but clearly believe it was a terrorist attack and you heard from the president , a strong statement of solidarity with the french people. This is an attack not just on terrorists, its an attack not just on the people of france, but this is an attack on all of humanity and the universal values that we share. Those who think that they can terrorize the people of france or the values that they stand for are wrong. And after that statement, jon, the president was able to seek with the president president hollande and now the president heading overseas to deal with this issue of isis. Reporter thats right. First stop on that trip will be turkey where he is meeting at the g20 with other european leaders. President hollande was supposed to be there. That meeting will go on without president hollande but the topic, number one topic was how to deal with the battle against isis and in the statement from the president and in what we are hearing from Administration Officials since that statement, you hear resolve to help the french not just with the investigation and the aftermath of this attack but clearly the implication here is that the United States will help in going after whoever was responsible for this attack. Okay, jon karl, thanks very much. So many folks here at home on egg, security is being ramped up especially at sports arenas and stadiums. Lots of College Football games will be played across the country today and nfl stadiums will be filled and dan is in times square with that part of the story. Hi, dan. Reporter paula and george, good morning to both of you. Cities across the country are boosting security in the wake of that horror over in paris including this city, americas largest metropolis. A place that knows terrorism all too well, new york city. Here in new york, the nypd deploying extra personnel and its counterterrorism unit. Critical Response Teams ready in not only will you see an increased uniformed presence with Police Officers with heavy weapons, theres also we work with our federal partners, the fbi and the joint Terrorism Task force. Reporter with one of the targets in paris being a packed stadium, sporting venues across america will be enhancing security today. In los angeles, the famous rose bowl increasing its staffing and asking fans to leave their bags at home. The nba and nhl putting its teams on high alert. But the nfl saying it actually wont be changing protocols as sundays games approach. The League Spokesman saying, security at our games is always at a heightened state of alert adding all nfl stadiums are detectors. Nuisance. This is the world we live in now and if you have to take precautions, if you have to go through screening, thats just reporter with the attackers in paris hitting so many socalled soft targets like a restaurant and concert hall, the nypd and fbi will be working to keep popular areas around this city safe. You can expect heightened security at Tourist Attractions and on public transit. The tragic events in paris we established a counterterrorism overlay. What that is, its heavy Weapons Service officers. They go to highprofile and sensitive locations throughout the city. Reporter it is important to note, very important to note that the department of Homeland Security is urging americans not to panic. Issuing a statement in which they say, we know of no specific or Credible Threats of an attack on the u. S. Homeland of the type that occurred in paris. Paula, over to you. Very important note, dan, thank you. Authorities in the u. S. Are closely monitoring the situation in paris. Abcs senior justice correspondent Pierre Thomas is in washington. And, pierre, here in the u. S. , weve been just as active in tracking down potential terror attack, havent we . Reporter yes, paula, the fbi has dozens of investigations many surround suspected isis sympathizers and found a specific pool theyve reached through social media. In the last year alone more than 70 americans have been arrested for somehow trying to support isis, some accused of trying to join isis, others arrested for plotting attacks here at home. Most are young. Most are men. But there have been some women and even teenagers have been arrested too, paula. In terms of different shakeniateing style is there a between here and in paris . Theyve been aggressive in monitoring radical websites and social media. One tactic not often utilized in europe stings where fbi agents pose as terrorists and officials have been extremely aggressive by stopping americans from going to syria in the first place. Pierre has been reporting for months they are accepting out trying to recruit 90,000 messages on social media every single day. Pore from paris ahead but a quick check of the weather from ron. A lot of rivers outside seattle are flooding with a storm System Impact there. Theres the Atmospheric River bringing more rain into the area and snow levels dropping as this thanks, rob, amy frieze here with the accuweather forecast. Just shy of 50 degrees as temperatures meet up with the winds, it will feel colder. By tomorrow, we have a more mild air mass and thats going to make for a more pleasant situation heading into the second half of the weekend.