There has been a tractor trailer crash on the eastbound 401 which is leaking fuel and blocking the road, causing delays Wednesday afternoon.
The truck tipped over just before 2:00 near Wymans Road, between Shannonville Road and Marysville Road.
OPP and firefighters are on the scene trying to plug the gap and clean up the spill.
Traffic is being delayed so drivers are being advised to use an alternate route and avoid the eastbound 401, near Wymans Road.