A 69-year-old pedestrian suffered a serious head injury after he was struck by a vehicle at the intersection of Greenbank Road and Berrigan Drive in Barrhaven, police say.

Paramedics, police officers and firefighters were called to the crash scene on Greenbank near Berrigan at about 2:10 p.m. Tuesday.

Greenbank was closed through the afternoon rush hour as collision investigators were at the crash scene. It reopened just before 7 p.m.

Paramedics administered a breathing tube to help the man, who was unconscious when he arrived at hospital, paramedics said.

He was in serious but stable condition, police said, after he was thrown several metres after the impact.

The 34-year-old driver and a 34-year-old passenger, from the Orillia, Ont., area, were not injured. Neither speed nor alcohol are believed to be factors in the crash.