and a phone conversation with the australian prime minister. we don't know whether he is acting alone, i think it's interesting we haven't heard isis himself, they are not claiming him as one of tear own. certainly very distressing, very disturbing not just for myself but people here, sydney siding people across australia to know there is somebody here who wants to cause harm for all australians. >> we have heard, not from isis, from about 40 muslim groups from within australia condemning the actions of this man, saying he does not represent the faith. so we do know that much now. still a very developing situation. anna, you will be on the ground force there. right now, we will take a break and speak with a top analyst security analyst to find out what is being done to bring this situation in sydney to a peaceful end. there are negotiations. we will tell you about them when