No injuries were reported after a fuel tanker rolled over on Highway 401 near Tilbury.
Ontario Provincial Police (OPP) and Emergency Services responded to the area at around 3 a.m. on Sunday.
Around 20,000 litres of fuel reportedly spilled across the westbound lanes and into a nearby ditch.
It took crews over 12 hours to clean up the fuel, allowing the westbound lanes to reopen.
The exact cause of the rollover is still being investigated.