CAERNARVON TWP., Pennsylvania (WPVI) -- Crews in Chester and Berks counties are investigating an explosion at the Timet Plant in Caernarvon Township.
The call came in just before 2:30 p.m. Thursday at the plant located on the 900 block of Hemlock Road.
The view from Chopper 6 showed damage to the roof of the building.
The plant is used to make titanium materials.
No injuries were reported.
The cause of the blast is still under investigation.