Residents heard a large explosion near Park Avenue and 116th Street in East Harlem around 9 a.m. Wednesday. One five-story building was reduced to rubble, and a second building also is heavily damaged.

 Sidewalks for blocks around are littered with broken glass from shattered storefront and apartment windows. Witnesses say the blast was so powerful it knocked groceries off the shelves of nearby stores.
The site is next to Metro-North commuter railroad tracks. Train service is halted to and from Grand Central Terminal.