Multiple explosions were heard after a facility in Chester County owned by an explosives and ordnance company went up in flames Tuesday morning.

Fire crews were dispatched after 3 a.m. to the Action Manufacturing Company facility on Bailey Crossroads Road in Atglen, a community in West Fallowfield Township, Pennsylvania. The Keystone Valley Fire Department confirmed details of the fire in a news release.

When the first crews from Cochranville Fire Company arrived, they found the building in flames and contacted the Chester County Hazmat team. Other units, including Keystone Valley, were then brought in as mutual aid.

The crews connected with a representative from the facility, who informed them about the hazards present in the building.

Chopper 3/CBS News Philadelphia

Tankers were set

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