A man has been arrested for impaired driving after four pedestrians were struck by a car downtown on Saturday afternoon. 

Authorities were called to the King Street West and Bay Street area around 3 p.m. 

Police said the 27-year-old driver was travelling east on King Street when he mounted the sidewalk and hit a group of people. 

Police said three of the pedestrains were transported to hospital. One of the pedestrians is in a life threatning condition, while two others have non-life threatening injuries.

The 27-year-old driver, who was allegedly impaired, did not suffer serious injuries. 

King Street West is blocked from University to Bay Street, police say. 

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