NEW YORK (Reuters) - Search crews picked through still-smouldering rubble on Thursday, looking for survivors of a gas explosion that caused the collapse of two New York apartment buildings a day earlier, killing seven people and injuring about 60.
Facing thick smoke and bitter cold, dozens of fire-fighters, police officers and a team from the National Transportation Safety Board were at the Upper Manhattan scene to determine what had caused the explosion on Wednesday, shortly after a resident nearby had called the utility, Con Edison, to complain about the smell of gas. The safety board investigates accidents involving natural gas.