M25 crash LIVE: 'Serious collision' sparks motorway closure as police issue Heathrow and Gatwick travel warning

The crash has sparked long tailbacks on the M25National Highways A section of the M25 is closed anti-clockwise after a serious crash, sparking a warning from police for drivers heading to Heathrow and Gatwick airports. The anti-clockwise lanes are closed between J11 near Ottershaw and J10 near Cobham following the crash around 11.55pm on Monday. National Highways said: "The incident scene is now being cleared but this is likely to take several hours and the closure will remain through the morning peak travel period."Therefore, please expect long delays on approach to to J11 and also on local routes in the area this morning."Surrey Police said: "If travelling to Heathrow and Gatwick airport, please check your travel time before you depart as your journey is likely to be impacted. "The road will be closed for a number of hours to allow a thorough investigation to take place. We will provide an update once the motorway reopens."Follow the latest updates below...What is the diversion route?National Highways has advised drivers caught up in the M25 delays to follow the diversion route via Hollow Square.• Leave the M25 at Junction 11• Follow the A320 through Ottershaw and Woking• Take the A245 towards Cobham• Rejoin the M25 at Junction 10 via the A3 What has National Highways said?National Highways said police have completed their investigations, but motorists have been urged to avoid the motorway this morning due to the traffic backlog."The incident scene is now being cleared but this is likely to take several hours and the closure will remain through the morning peak travel period," they said.Major crash on the M25 sparks closure The M25 anti-clockwise in Surrey is closed between Junction 11 (Chertsey) and Junction 10 (Wisley) following a serious collision late last night.Traffic is severely disrupted during morning rush hour, with queues reportedly stretching back to Junction 13.Major delays are expected for drivers travelling to Heathrow and Gatwick Airport.Follow our live blog for the latest travel updates