collapse of these buildings. an extended operation under way. this is very much a search and recovery effort still at this time, wolf. they have literally just been putti putting out the final flames from this fire, now searching through all of the rubble. we got here just about half an hour after it happened, 45 minutes or so, and talked to people who lived in buildings right on the block that were impacted by this. listen to what one 21-year-old angelica told me. >> my neighbors came banging on my door, telling me to get out, that i guess they were evacuating the building. and i couldn't get out. my door was jammed. everything off my window sill fell and i guess the impact of the explosion jammed the door, as well. >> reporter: and now, you know, we also met people here this morning looking for their loved ones, running up, embracing others, very worried about what would have happened. i think the big question at this time, and the mayor said time and time again in the press conference, he will not name the number of people unaccounted for. it is just far too early to do