No officers were injured in the shooting but the man was undergoing surgery and it was unknown whether he was expected to survive until the procedure was complete, said Phoenix Police Sergeant Steve Martos.
Authorities responded to the Desert Meadows Apartment complex in the 16800 block of 42nd Avenue around 6:45 p.m. after receiving a call from a woman who said her roommate was threatening to commit suicide with a knife, Martos said.
Officers found the man in an upstairs bedroom of the apartment and tried to dissuade him from harming himself with the weapon. Martos said one officer deployed a Taser on the suspect when he threatened authorities.
After giving several commands to drop the knife, officers shot the suspect multiple times. The man's roommate was not inside at the time.