SIMI VALLEY, Calif.—Police say two people are dead in what appears to be a murder-suicide inside a Simi Valley home.

Cmdr. David Livingstone said officers found a dead woman and a seriously injured man when they were called to the home in a cul-de-sac Saturday afternoon. The man later died at a hospital.

Livingstone said a gun was found at the scene, and that the man probably shot himself after killing the woman.

Their names and the nature of their relationship were not released.

The Ventura County Star reports ( http://bit.ly/KcW0Zg) four children who lived in the house were with neighbors.