A pedestrian suffered life-threatening injuries when he was struck by a car in San Francisco’s South of Market neighborhood Thursday afternoon, police said.

The collision was reported at about 2:40 p.m. near the intersection of Harrison and Harriet streets.

The 46-year-old victim was walking east along Harrison Street when he was struck by a gold Subaru traveling south on Harriet Street, according to police.

The driver of the car, a 45-year-old man, stopped at the scene and is cooperating with the investigation into the collision, police said.