NYC Building Explosion: NYPD’s bomb squad responding

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

(CNN) — The NYPD’s bomb squad is responding to the building explosion at 1644 Park Avenue in Manhattan’s East Harlem, according to a law enforcement source with direct knowledge of the incident. It is not clear what prompted the unit to go to the scene or whether it was done as a precaution. 
From CNN’s Susan Candiotti