Updated: September 23, 2016 10:07 AM ET | Originally published: September 22, 2016

At least three people are dead in Athens, Tenn. after a lone gunman opened fire inside a factory on Thursday, authorities said.

The shooter, identified by authorities as 45-year-old Ricky Swafford, killed two people inside a Thomas and Betts plant building about 4 p.m. before fatally shooting himself, WBIR reports.

Swafford was an employee at the factory, Athens Police Chief Charles Ziegler said at a news conference. Tennessee Bureau of Investigation spokeswoman Susan Niland said Swafford became upset while talking with two supervisors and left the building before coming back and fatally shooting James Zotter, 44, and Sandra Cooley, 68, according to the Associated Press.

Swafford’s 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 Swafford used a semi-automatic pistol.

The incident is under investigation.

Contact us at editors@time.com.

SPONSORED FINANCIAL CONTENT

Read More From TIME

EDIT POST