An elderly woman was critically injured after a school bus struck her in Oshawa on Wednesday afternoon, police say. (CTV News Toronto) An elderly woman suffered life-threatening injuries after being hit by a school bus in Oshawa on Wednesday afternoon, police say. Durham Regional Police say the incident happened at around 2:45 p.m., prompting police to temporarily close Simcoe Street South between Mill and Albany streets. Police say the woman was rushed to a Toronto-area trauma centre. No children were injured from the collision, and neither was the bus driver, they add. The circumstances surrounding the incident are unknown at this time.