A man shot and killed an intruder who was assaulting his 34-year-old son, Weatherford police said today.

Robert E. Bardwell, 57, entered the home in the 500 block of South Rusk Street and began attacking the son, police said. The dad fired a warning shot into the ceiling, but the attack continued. The dad then fired at Bardwell.

Police arrived at the home shortly after 1 a.m. today. Bardwell, who appeared to have multiple gunshot wounds, was pronounced dead at the scene.

Bardwell appears to have been known to the 66-year-old man and his son, authorities said. Police did not provide further details on Bardwell's relationship with the family.

When completed, the investigation will be forwarded to the district attorney's office for review, police said.

Authorities did not release the names of the father and son.