East Harlem explosion: five people dead, dozens injured

East Harlem explosion: five people dead, dozens injured

East Harlem explosion: five people dead, dozens injured

Updated 13 March 2014, 20:09 AEST

Adjoining residential buildings in New York's East Harlem neighbourhood have exploded and collapsed, killing five people and injuring dozens.

Adjoining residential buildings in New York's East Harlem neighbourhood have exploded and collapsed, killing at least five people and injuring dozens.

The blast sparked a fire at what remained of the five-storey buildings, engulfing the area near 116th Street and Park Avenue in thick smoke.

Dozens of fire crews battled the blaze amid fears that nearby structures might collapse.

Piles of debris including bricks and lumber were strewn over nearby footpaths.

New York mayor Bill de Blasio said it appeared the explosion was caused by a gas leak.

He said energy company Con Edison received a call alerting it to a possible gas leak at 9:13am (local time), about 15 minutes before the blast.

Local residents also spoke of smelling gas in the area.

Mr de Blasio said a number of people remained unaccounted for and a thorough search of the rubble would be made once the fire was extinguished.

He cautioned that some of those missing could simply be safe elsewhere and out of contact.

"This is a tragedy of the worst kind, because there was no indication in time to save people," he said.

"There is a tremendous amount of anxiety, but suffice it to say that every effort is being expended to locate each and every one of these (missing) individuals."