A homeowner in Texas fatally shot her neighbor who tried to break into her home, authorities said.

A mortally wounded Marci Green, 38, was found by deputies from the Montgomery County Sheriff’s Office soon after they were called to the River Plantation home at about 9:15 p.m. Saturday, the Houston Chronicle reports.

The unidentified homeowner claimed the alleged intruder tried to enter through the front door before giving up and making an attempt at the back door.

“She actually opened the screen door and started coming in the back door,” Montgomery County Precinct 1 Justice of the Peace Wayne Mack told the newspaper. “The homeowner advised her to not come in the house and feared for her life.”

The homeowner fired one round, striking Green in the chest. She was later pronounced dead at the Conroe Regional Medical Center, KTRK reports.

The homeowner was not injured during the incident, according to Montgomery County Sheriff Lt. Scott Spencer. Deputies are now looking into the relationship between the two women and for any prior disturbances in the neighborhood, he said.

“We will continue interviewing witnesses and wait on the autopsy,” Spencer told the Houston Chronicle. “Once the investigation is completed, we will send it over to the district attorney’s office for them to proceed as they see fit.”

Spencer did not return messages seeking additional comment Monday. As of late Sunday, no arrests had been made in the shooting.