Two adults and an infant have been seriously injured after being struck by a vehicle in North York.Toronto police say they were called to the Caledonia Road and Glengrove Avenue West area, north of Glencairn Avenue, just before 6 p.m. for reports a pedestrian had been struck.When they arrived, they found a woman in her 30s, a man in his 20s, and an infant who had been injured. Paramedics tell CityNews the infant suffered serious, potentially life-threatening injuries, while the woman had serious, life-threatening injuries. The man was listed in serious but non-life threatening condition. A fourth person was assessed for minor injuries at the scene. Investigators say the driver of the vehicle remained at the scene.