providing some operational details. we have learned a lot more about what has been going on in sydney over the last ten hours or so. we understand there's more than a dozen people being held hostage inside this cafe, that the guy with the gun has made contact with three media organizations, making a number of demands. among them he wants an isis flag, he wants contact with the man you just saw there, tony abbott, the australian prime minister. he's also making these claims that there are two explosive devices, two bombs inside the cafe -- >> none of that confirmed. >> yeah. somewhere in the cbd. we've also seen over the course of the last few hours five people managing to escape from inside this cafe. >> yeah, we have. and we have the compelling pictures of the women who left the building with the lindt apron. five total. we still don't know how they were able to get out.