The Latest on a deadly shooting at a Phoenix motel (all times local):

7:50 a.m.

Phoenix police say a man opened fire at a motel and carjacked two vehicles before shooting himself, leaving two people dead and two other victims wounded.

The unidentified suspect is in extremely critical condition. Officer James Holmes says police don't know a motive for the attack.

Holmes says the gunman shot three men in the motel lobby Sunday night, killing two of them, and then shot and wounded two people in a pickup truck in the parking lot.

The man then carjacked a vehicle nearby, abandoned it when it broke down and stole another car.

Holmes says the man shot himself in the head when police confronted him after he crashed the second car.

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12:55 a.m.

Authorities say a shooting at a Phoenix motel has left three people with critical wounds.

Fire Department Capt. Ardell Deliz says the men in their 30s and 40s were rushed to a hospital following the shooting late Sunday night.

Deliz says two other people were treated at the scene for apparent graze wounds, but they refused hospital care.

There was no immediate word on what touched off the gunfire at the Interstate 17-area motel in north Phoenix.

There was also no indication of any suspects or arrests.

Police spokesman James R. Holmes indicated in a statement that an investigation was underway, but didn't elaborate.