A motorcyclist is dead following a collision on Highway 401 in Oshawa on Wednesday morning, Ontario Provincial Police say.
The crash happened in the eastbound lanes of the highway at Harmony Road shortly before 6 a.m.
Police said the motorcyclist, a 25-year-old man from Pickering, crashed into the rear of a tractor-trailer.
He was taken to the hospital where he was pronounced dead.
No other injuries were reported.
The eastbound lanes of the highway were shut down for several hours.