CREVE COEUR, Mo. (AP) — Authorities suspect murder-suicide in the deaths of a man and a woman at a suburban St. Louis home.

St. Louis County police say the bodies were found early Sunday at the home north of Creve Coeur. Police initially were called to the house several hours earlier to check on the well-being of a person. Police left after being unable to reach anyone but were summoned back to the home a short time later.

Police say officers looked through a window and saw a man walking near the back of the home. Officers were trying to get the man's attention when they heard one gunshot and backed away from the home. A tactical unit eventually entered the home and found the bodies. No names have been released.