(AP) Two pedestrians have been killed and two others are critically injured after being struck by a vehicle in Seattle.

Seattle police spokesman Jeff Kappel says the injured people are an infant and a woman in her 20s. They were taken to Harborview Medical Center with life-threatening injuries.

Fire officials say the infant required CPR and the woman suffered a head injury.

The accident happened Monday afternoon in North Seattle. Kappel says the driver of the vehicle is being investigated for suspicion of driving under the influence of alcohol or drugs.