a con edison official tells cnn there was a report of a possible gas leak 15 minutes before the explosionators smelled gas in the air. law enforcement officials stressed to cnn, they are seeing no connection, not seeing any connection to terrorism. mayor bill de blasio held a news conference a few moments ago. here's what he had to say about the operation under way right now. >> we know we've lost two people already. we know at this moment preliminarily that 18 are injured. different levels of injury. we also know that there will be a search through the rubble of the building as soon as the fire is put out, looking for those who are missing. there are a number of missing individuals. i emphasize that those who are missing could well be safe in another location. >> let's go to the scene right now, don lemon is joining us. he's there. don, you know this area well. you don't live all that far away. i know you live in harlem. first of all, tell our viewers -- a lot of people know new york. where exactly these buildings are located. >> reporter: they're located between -- hang on, wolf, sorry.