Oklahoma City police say a fire that swept through a home where four people were found dead was intentionally set.
Investigators are now searching for a fifth person they believe was at the house when the blaze began.
Firefighters discovered the bodies of three women and one man early Monday inside the burning home on the city's southwest side. The identities of the victims have not been released.
Police Sgt. Gary Knight says investigators are searching for another man they believe was at the home when the fire started.
Knight says the medical examiner's office has not yet determined how the four people died.
Melvin Watkins, whose family owns the home, says he rented it about three months ago to 31-year-old Jose Fernando Fierro.