Almost exactly a year ago, another explosion rocked a separate neighborhood in New York City. That incident in East Harlem killed eight residents and injured dozens on the morning of March 12, 2014. The National Transportation Safety Board is still investigating what may have caused the explosion, which destroyed two five-story buildings. The NTSB released a report last week indicating that the Harlem explosion may have come from a new section of plastic pipe installed in 2011.

\"PHOTO:
Andrew Burton/Getty Images
PHOTO: A building burns after an explosion on 2nd Avenue on March 26, 2015 in New York City.
>

Witnesses said the street a scene of chaos when the explosion erupted as first responders rushed to the site. There were a series of earlier reports that indicated the firefighters might have been missing after the blast period, but all the first responders were located. At the same time, there was a frantic effort by the fire department to evacuate neighboring structures on a densely crowded block as the fire continued spreading.

Building exploded on second avenue and seventh street. Policeman are urging people to leave the premises, and the fire is still going. (Picture by Sophie Lilla)

A photo posted by NYULocal (@nyulocal) on Mar 26, 2015 at 12:46pm PDT

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