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NEW YORK — A gas leak triggered an earth shaking explosion that flattened two apartment buildings on Wednesday, killing at least three people, injuring more than 60 and leaving nine missing. A tenant said residents had complained repeatedly in recent weeks about ‘‘unbearable’’ gas smells.
By evening, rescue workers finally began the search for victims amid the broken bricks, splintered wood and mangled metal after firefighters spent most of the day dousing the flames. Heavy equipment, including back hoes and a bulldozer, arrived to clear the mountain of debris where the two five-story East Harlem buildings stood. Flood lights were in place. Thermal imaging cameras were at the ready to identify heat spots — bodies or pockets of fire.
The recovery was facing hardship in the form of the weather, which was expected to drop into the 20s with rain. Some parts of the debris pile were inaccessible because of a sinkhole caused by a subsurface water main break, officials said.