PLANT CITY, Fla. -

Police say a teenager defending his mother fatally shot his father in Plant City.

The shooting happened late Saturday as a group of family and friends were gathered around a bonfire outside a mobile home in a rural area northeast of Tampa. Police say the teen's parents went into the mobile home and got into an argument.

The Tampa Bay Times reports the father began beating the mother and was choking her when the 17-year-old son rushed in.

Police say the teen shot his father with a handgun before calling 911. Police found the father dead in the master bedroom. The mother was shot in the thigh. She was treated at a nearby hospital.

Police did not arrest the teen, who was left in the custody of his mom.