Concussion Blast News Today

Bit on edge. the fire teams here that the ambulances they have have reved up like theyre ready to move into action. but right it appears the s.w.a.t. team have moved on that house to rescue those four firemen that are still being held in that house. >> david, sounds like what youre saying this is all coming from the police and law enforcement side, the explosion thats youre talking about. theyre not from the gunman or it is impossible to be sure? >> reporter: they did not sound like gun shots. t...

Concussion blast and then several smaller sounds of what might be tear gas canisters being fired at a location. we cant see any of this going on. but i have heard the sounds before at other situations that ive been at. they sounded very familiar to me. and thats what it sounded like to me. but these were not gun shots that i was hearing. >> and, david, just to make sure we understand the reaction of the law enforcement that youve seen. i know you were describing that the ambulances were revving ...