Rochester, MN (KROC AM News) - A Rochester man attacked his wife with a hammer Wednesday and refused to stop even after police arrived.

Police Capt. Casey Moilanen says the 40-year-old daughter of 65-year-old Joseph Kinyanjui called 911 around 7:00 PM to report the attack. She and her daughter had fled the home in the 5100 block of 54th Ave NW when the attack began.

Officers arrived to discover Kinyanjui was still hitting his wife inside their locked bedroom. Moilanen says the officers kicked the door open and when Kinyanjui still refused to stop, tasers were used to get him under control.

Moilanen says the 66-year-old victim was in and out of consciousness. She was covered with blood and had suffered severe head and other injuries.

The woman was taken to St. Marys Hospital and Moilanen says her medical condition was unknown as of Thursday morning.

News update: Rochester police find man throwing items off roof of motel.