Texas police are investigating after a San Antonio man shot and killed his wife Saturday after allegedly mistaking her for an intruder.

Debora Kelly, 48, was pronounced dead at the scene around 4:15 a.m., according to police. A San Antonio Police Department spokesperson told FoxNews.com there were no new developments as of Monday afternoon and the case was still under investigation.

Kelly’s husband, whose name has not been released, told cops he heard noises coming from the front of the house and believed an intruder was trying to break in, according to MySanAntonio.com. The man retrieved his shotgun and fired a single round, striking his wife in the upper body.

The husband was interviewed by detectives Saturday morning and has not yet been charged.

“Our investigators are very particular on preserving the scene to bring together pieces of the puzzle and see if it lines up with the statements of the shooter,” SAPD spokesman Officer Douglas Greene told MySanAntonio.com.

Dale Hollrah lives in the neighborhood and told KSAT that the husband owns a contracting company and Debora Kelly was “in the medical world.”

“I would walk over, see him outside, walk over and talk with him,” Hollrah said. “Just normal neighbors.”