An 18-year-old girl is one of three people to die in holiday Monday crashes in eastern Ontario.

Chi Hui Seo was one of five passengers in a minivan that collided head on with another vehicle on Highway 17 east of Pembroke at about 8 p.m.

Police say the eastbound van crossed the centre line before slamming into the oncoming vehicle.

The cause of the crash is under investigation.

Also on Monday, a motorcycle driver died after a collision with a car at Royal Oak Court and Albion Road late last night. The 32-year-old man's name has not been released.

And a single vehicle crash on the 401 near Cornwall left a passenger dead Monday afternoon.