A 26-year-old Manoa man attacked his father with a sword Tuesday night in a Manoa home, police said.
The incident occurred at about 10 p.m. at an Oahu Avenue home.
Police said the man struck his 59-year-old father on the head with the sword. Police said the father was taken to the hospital for treatment and released.
Police arrested the son about an hour later near his residence on Oahu Avenue on suspicion of second-degree attempted murder.