A middle-aged man described as an apparent burglary suspect was shot to death this afternoon by the homeowner, an off-duty Buffalo police officer, on Lisbon Avenue in the city’s University District, Buffalo police reported.

The incident happened at about 1:30 p.m., on Lisbon at Parkridge Avenue, where police say the apparent suspect was exiting the home when he was confronted by the homeowner. During that confrontation, the off-duty officer fired his gun, striking the suspect, who was believed to be in his early 50s.

That man was declared dead at the scene, police said.

The incident remains under investigation by Buffalo police homicide detectives and the Buffalo Police Internal Affairs Unit, which responds to any officer-involved shooting.