Police are asking for the public's help in an investigation into a collision that sent a 72-year-old woman to hospital.

Around 3:30 p.m. on Wednesday, a woman was crossing Wentworth Street South at Aikman Avenue when a vehicle struck her. She suffered serious injuries and was transported to hospital.

Police say speed and alcohol were not factors in the collision.

Witnesses who have not yet spoken to police are asked to call Det. Const. Hendrik Vandercraats at 905-546-4755.