LIBERTY, Texas (AP) — Southeast Texas authorities say they are investigating the deaths of a woman and her husband as a possible murder-suicide.

The Liberty County sheriff's office says they were called Sunday after the couple's son discovered his parents' bodies in their south Liberty County home. The son went to the home after being unable to contact his parents.

Official say the son found the door unlocked and then discovered his mother dead on the floor from an apparent gunshot wound and his father a few feet away, also dead from a gunshot wound with a gun lying nearby.

Sgt. Kenny Dagle says the wife, thought to be about 73, had recently suffered a stroke. Her husband is thought to be about 75. Their identities haven't yet been released.

Autopsies have been ordered.