Into Ntsb News Today : Breaking News, Live Updates & Top Stories | Vimarsana

One or a few people have described as coming into a curve when it seemed like it started to decelerate or something was wrong at that point. it's way too early to know what caused this but the engine and all seven cars derailed according to amtrak. three cars are on the side. one is nearly on the roof. one is leaning hard. an ntsb crew is coming in here early in the morning to start going through this to see if they can figure out a cause. those numbers you mentioned five dead. six injuries we know of are considered critical at this point, those numbers likely to change overnight. >> and what ...

Reena ninan is on assignment. right to the breaking news, a deadly amtrak disaster in philadelphia. at least five people killed and dozens of people injured. >> and take a look. this is what it looked like inside. this is a new york bound train. seven cars derailed. this happened about 9:30 last night. you're seeing some of the pictures here from passengers. many of them were able to climb out. we do have a lot that are injured. many were bloodied but still able to walk out. at least six are in critical condition at hospitals. you see some of the first responders helping the wounded last night...

Reena ninan is on assignment. right to the breaking news, a deadly amtrak disaster in philadelphia. at least five people killed and dozens of people injured. >> and take a look. this is what it looked like inside. this is a new york bound train. seven cars derailed. this happened about 9:30 last night. you're seeing some of the pictures here from passengers. many of them were able to climb out. we do have a lot that are injured. many were bloodied but still able to walk out. at least six are in critical condition at hospitals. you see some of the first responders helping the wounded last night...

Issue. amtrak will tell you that. that conversation will happen later, but for right now, we want to make sure everybody is all right. many are in critical condition as we speak. others were able to walk off okay, but still they are going to be looking into ntsb has a go team that will be looking at every single aspect of this, what in the world did happen. we continue to get updates by the minute. here on "world news now." stay with abc news. we'll give you the very latest from this train derailment coming out of philadelphia later this half hour, we'll hear from more passengers and eyewitnes...

Many of them were able to walk out on their own. we know dozens are injured. six critically in the hospital right now. 240 plus people on board but overwhelmingly most of them able to get out. look at these pictures again marci, we're getting. >> unbelievable. you mentioned the ntsb investigators making their way to the scene. they're going to look at the cars themselves that people were able to make their way out and trying to figure out what caused this. they'll look at the tracks and look at the recorder on that train, kind of the equivalent of the black box that would be on a plane to see ...