A crash on the M25 is causing major delays in Berkshire and Buckinghamshire this morning (Friday).

Three lanes are closed on the anti-clockwise carriageway at Junction 14 (Heathrow), with queues tailing nine miles - as far back as Junction 16 (Iver Heath).

According to Highways England, drivers are experiencing delays of around an hour on the motorway.

The severity of the crash is not yet known.

The incident was first reported at about 5.40am today.

Highways England has predicted that the closure will remain in place until around 8.15am.