Authorities are investigating the death of two individuals who were found dead in a Port Huron home Saturday afternoon. The Port Huron Police Department was called to the house in the 2800 block of Stone Street around 1:00pm Saturday. A family friend had called police to the scene, where they found the bodies of a 53 and 79 year old females. They are believed to mother and daughter. The Port Huron Police Department tells WPHM a handgun was used in the apparent murder-suicide and investigations are ongoing.