A man is dead after his motorcycle collided with a car on a Highway 417 off-ramp near Saint Isidore, Ont., southeast of Ottawa, on Thursday morning.

It happened at about 9:40 a.m. at the intersection of County Road 20 and the highway's eastbound off-ramp interchange, according to Ontario Provincial Police.

The man driving the Yamaha motorcycle was pronounced dead at the scene. He has been identified as 38-year-old Sylvain Coulombe from St-Eugene-Guigues, Que.

A 77-year-old woman from Gatineau was driving the car, a Chevrolet Cavalier. OPP did not release any information about her condition .

A section of County Road 20, south of the Highway 417 overpass, and a section of County Road 9, north of the overpass, were closed, as well as the eastbound off-ramp from Highway 417 at Highland Road.

All roads have reopened.