Firefighters work at the site of explosion
Firefighters work at the site of explosion in New York's East Harlem neighborhood, March 12, 2014. At least three people were killed and 27 others injured when three residential buildings collapsed in an explosion in New York's East Harlem neighborhood on Wednesday, authorities said. (Xinhua/Wu Rong)
Firefighters work at the site of explosion in New York's East Harlem neighborhood, March 12, 2014. At least three people were killed and 27 others injured when three residential buildings collapsed in an explosion in New York's East Harlem neighborhood on Wednesday, authorities said. (Xinhua/Wu Rong)