BENSALEM, Pa. (AP) – Fire department officials say a 35-ton silo being used to collect dust has collapsed and crashed through the roof of a suburban Philadelphia concrete business.

No injuries have been reported.

The silo was on top of CGM Concrete in Bensalem, just northeast of Philadelphia. It fell through the business’ roof Monday night.

Investigators say the collapse severely damaged the building, which may have to be demolished. They say it also ruptured gas and water lines inside the building.

The cause of the collapse is under investigation.

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