The eastbound lanes of Highway 401 in Whitby were closed for several hours on Monday evening due to a crash involving a tractor-trailer. Traffic was forced off the highway at Lake Ridge Road as emergency crews respond to the collision at Brock Street. Images from the scene appear to show a pickup truck wedged underneath the tractor-trailer. The cause of the crash is unclear at this time. The highway fully reopened around 9:30 p.m. Read this story