UPDATE 1-Fire burns out of control at Philadelphia refinery amid reports of explosions

A fire was burning out of control at an oil refinery in Pennsylvania on Friday morning, a Philadelphia fire department official said, as NBC Philadelphia reported a series of explosions on site.

The full extent of the fire at the 335,000 barrels per day Philadelphia Energy Solutions refinery was not immediately known. A company spokeswoman was not immediately available for comment.

Roads in the vicinity were closed off and explosions were reported, the NBC affiliate and other local media said.