we have very little information available at this point in time, but on the phone we do have jennifer oversteen who apparently witnessed this event. jennifer, can you hear me? >> hello? >> hi, jennifer? >> hi, katie. >> hi. can you please tell me what you saw and give me any information about what's going on there? >> yes. i have to -- it's -- it's quite terrifying. i'm in shock right now. i came out of the subway at bowling green, heading to work in battery park, at the ritz-carlton hotel, and i came out and it's -- i saw a -- i heard a boom, looked up, there was a big ball of fire. i'm looking north at the world trade center and it is the last twin tower. if i'm looking north. i'm looking north in battery park right now. you can hear the fire engines and emergency crews behind me, and it is unbelievable. when the fire first burst it was -- hello? >> go ahead. we can hear you. >> i have never seen -- before -- and -- as you know i used to work in news. i've never seen any fire like this in the air. and the pieces of the building were flying down. it looks like it's the -- it's like the top --