Video shows Downingtown fire, explosions

Action News viewer JaredM sent in this photo of the fire

July 4, 2011 3:40:29 PM PDT
Chester County fire crews battled an extra alarm blaze in Downingtown.

Firefighters battled heavy fire upon arrival at a one-story brick structure.

Much of the fire, which began at 2:05 p.m. and escalated to a second alarm, has been knocked down.

Action News viewers sent in photos of the smoke and flames and Action News viewer JaredM sent in video showing explosions coming from the building.

No injuries have been reported.

Fire officials say an initial assessment leads investigators to believe the building was unoccupied.