The eastbound lanes on Highway 401 in Napanee were closed this morning due to a serious collision.
The highway was closed at Deseronto Road in the area of the Beechwood road overpass.
According to OPP on the scene, the driver of a Jeep made a sudden movement and lost control of their vehicle. A transport truck then rear-ended the Jeep, causing it to flip.
Police say the driver of the Jeep was taken to hospital with undetermined injuries. The transport truck driver was uninjured and is cooperating with police.
OPP do not expect charges to be laid.
One lane of the highway opened just before 3:30 p.m., and OPP expect both lanes to be opened by 4 p.m.
OPP are using drone technology for reconstruction, which will help speed up the investigation.
Traffic is being rerouted south of Deseronto Road to Belleville Road, then to to Jim Kimmitt Road and onto Centre Street, then back onto Highway 401.
The OPP are asking commuters to stay on this approved route and they also say that attempting to get around will only cause further delay and traffic congestion.