Two men in their 20s suffered severe injuries after a high-speed head-on crash in Winchester, Ont., about an hour drive south of Ottawa.

Paramedics from Ottawa and Stormont, Dundas and Glengarry Township, firefighters and Ontario Provincial Police officers responded at about 6 a.m. Thursday to the intersection of County Road 31 and County Road 38 South.

Police said a blue minivan heading north crossed the centre line and struck a red pickup truck travelling south head-on.

The driver of each vehicle, both men, had to be extricated by volunteer firefighters from Winchester.

Paramedics said the driver of the pickup truck, a 23-year-old man, suffered multi-system trauma to his head, legs and arms. He was airlifted to The Ottawa Hospital's Civic campus by Ornge Air Ambulance.

The van's driver, a 25-year-old man, suffered head and leg injuries. He was first taken to the Winchester Hospital, but then transferred to the Civic, paramedics said.

Ottawa police are investigating and they have closed County Road 31 just south of Winchester for most of the morning.