An 86-year-old man who was fatally mauled by two Rottweilers while on a walk in a Norwalk neighborhood was identified Thursday.

He was identified by the Los Angeles County Medical Examiner's Office as Woon Lee, who sustained fatal puncture wounds.

The man was walking about 6:45 a.m. Saturday in a neighborhood on 166th Street at Graystone Avenue when the two dogs attacked him, causing severe bleeding from an artery in his left arm, Los Angeles County Sheriff's Department homicide Lt. Steve DeJong told City News Service. The dogs were unleashed.

Two passersby fought off the dogs and tried to render aid to the injured man, DeJong said. Los Angeles County Fire Department paramedics took him to a hospital, where he died Sunday morning.

The owner of the dogs cooperated with sheriff's deputies at the scene, telling them the dogs got out and he was looking for them, DeJong said. The man took the dogs home but the lieutenant said they would likely be placed in the custody of Los Angeles County Animal Care and Control and quarantined. It was unclear if the dogs have been impounded.