Oro Valley police are investigating the deaths of an elderly couple as a possible homicide-suicide.

Officers found the couple — Clarence R. Shaub, 78, and and Doris J. Shaub, 76, — Tuesday when responding to a call requesting a welfare check at their Sun City home, Lt. Kara Riley, spokeswoman for the OVPD, said in a news release. The couple lived in the 13000 block of North Tom Ryans Way.

“Evidence indicates the incident is a homicide-suicide,” Riley said.

The investigation is ongoing.