An undisclosed threat triggered a large police response to a business in southwest Reading on Friday.

Several officers were dispatched to Reading Truck Body Manufacturing at 201 Hancock Blvd. as employees were told to evacuate the building for their safety.

Fire and ambulance crews stood by while officers swept the building in search of anything suspicious.

Nothing was found, and the employees were allowed to return to work around 11:30 a.m., said officials, who declined to disclose the nature of the threat.