SEATTLE (AP) — A Seattle police officer shot a dog to death while responding to a call for help from the pet’s owner, who was severely mauled by the animal.

The Seattle Police Department said in a release that it is investigating the incident as a police shooting, which happened at a northside Seattle apartment about 4:30 a.m. Saturday.

The dog attacked three people inside the home, including one man with severe injuries. Officers applied tourniquets to three of his limbs to stem the bleeding at the scene before he was taken to Harborview Medical Center.