Twitter users have been posting photos of the huge explosion in New York City. A blast was reported at about 9am local time. Local residents say a building collapsed at 116th Street and Park Avenue in Harlem, Upper Manhattan.

BREAKING NEWS: View from the ground of building explosion in #EastHarlem #NYC @CarrissaLawson

— Michelle (@Michelle9647) March 12, 2014

#NYC - One fatality has been reported among the 11 injured. -

— Anonymous (@YourAnonNews) March 12, 2014

PHOTO: Firefighters rushing the injured to hospital following East Harlem explosion - @ChrisBucktin #NYC

— NewsBreaker (@NewsBreaker) March 12, 2014

: An explosion in Upper Manhattan leveled a five-story building #NYC

— Nancy Mitchell (@NancyWonderful) March 12, 2014

RIGHT NOW: Live video feed of explosion/collapsed building in Harlem, NYC.

— Jim Roberts (@nycjim) March 12, 2014

LIVE VIDEO: Building collapse in New York #NY

— 13News Now (@13NewsNow) March 12, 2014

Major fires being extinguished at the scene, crews and teams everywhere working to stop it.

— Adnan Islam (@orangeadnan) March 12, 2014

Huge explosion in New York!

— Dr Shahid Masood (@Shahidmasooddr) March 12, 2014

Reports of large blast in east Harlem, New York - possible building collapse

— 𝕊𝕀ℝ 𝔸ℝℕ𝕆𝕃𝔻 ℝ𝕆𝔹𝕀ℕ𝕊𝕆ℕ (@uk_expat) March 12, 2014

No es un edificio sino dos. Se cree que hay gente atrapada. Explosión y derrumbe en #EastHarlem #NYC @s_nessen

— Opy (@OpyMorales) March 12, 2014