An armed woman was shot to death by Newton County deputies on Monday afternoon, authorities said.

A woman threatening suicide called authorities, who responded to a home on Russell Braden Road around 3:30 p.m., the Newton County Sheriff’s Office said.

When deputies arrived, the woman came out of the home with a rifle and refused to drop it despite repeated commands to do so, according to the sheriff’s office.

Deputies fired shots and the woman was hit an unknown number of times. She was transported to a hospital, where she was pronounced dead, Deputy Felicia Jefferson told The Atlanta Journal-Constitution.

The incident is under investigation by the GBI and internal affairs, Jefferson said.