This article originally appeared on Time.com.
At least three people are dead in Athens, Tenn. after a lone gunman opened fire inside a factory on Thursday, authorities said.
The unidentified shooter killed two people inside a Thomas and Betts plant building about 4 p.m. before fatally shooting himself, WBIR reports. The male suspect was an employee at the factory, Athens Police Chief Charles Ziegler said at a news conference. His body was found inside one of the building’s bathrooms with what appeared to be a self-inflicted gunshot wound, the police chief said.
Ziegler said it appears the gunman used a semi-automatic pistol.
It’s unclear what prompted the violence or whether the shooter knew his victims. The incident is under investigation.