Associated Press

COLUMBUS, Ohio — Officials say a battery for construction equipment exploded at police headquarters in Ohio’s capital, causing a boom that prompted an evacuation and search of the building in downtown Columbus.

Emergency responders were dispatched to the police division Tuesday evening after employees on multiple floors of the building heard an explosion. Police say the boom was traced to a battery in a hydraulic ladder in the lobby that was being used for an insulation project.

No one was injured, and there was no major damage. Bomb squad members and federal investigators were sent to the scene as a precaution.

The building and some surrounding streets were shut down for several hours but reopened early Wednesday. The police department’s non-emergency and 911 lines were not affected.

Copyright 2013 Associated Press