A section of the M25 has been closed after a waste lorry overturned in a crash with another HGV, causing a spillage of oil, diesel and waste on the motorway.
The anticlockwise carriageway between junction six (Godstone) and five (Chevening) was shut at about 04:14 BST and is expected to remain closed throughout rush hour.
National Highways warned work to clear the “large spillage” will be “extensive and complex” and the road will need to be resurfaced.
“The road will be closed through morning peak period,” the agency said.
National Highways said shortly after 7am there were delays of 40 minutes on the approach to the closed section.
Just after 08:00 traffic caught within the closure had been cleared.
Drivers have been told to exit the M25 at junction six onto the A25 and rejoin the motorway after Sundridge.
The delays are affecting thousands of vehicles heading to or from locations such as Heathrow and Gatwick airports, the Port of Dover and the Eurotunnel terminal at Folkestone.
Surrey Police warned there has been congestion on the A25 through Oxted due to diversions and temporary traffic lights.
