area here. this is 116th, 116th and park avenue. highly trafficked. the elevated railroad adjacent to it. these are con ttiguous building. what is the expectation judging by the smoke, the explosion and the level of collapse about what the possibilities of cause are here? >> well, right away, you think it is gas, because it is just such a violent explosion. you see that the debris everywhere is probably where the minor injuries came from in the beginning. anybody that was caught in the blast directly has probably got a lot worse than a minor injury. there are folks that are reporting the collapse. you can only hope they have enough air and oxygen to breath. they are not too close to the fire, which is pretty significant. it looks like the fire and parts of the building are getting worse. probably because the water was