Section of M25 closed after motorbike crash

An air ambulance was called to the scene

A section of the M25 is closed following a "serious" crash involving a motorcycle, police said.

The motorway was blocked in both directions between junctions five (Sevenoaks), and six (Godstone) shortly before 13:00 BST on Thursday, National Highways said.

Traffic data supplier Inrix said congestion had built up to junction four (Orpington) on the clockwise side.

As of 17:50, the clockwise carriageway was still closed, but the anti-clockwise road had reopened.

Earlier in the day, National Highways explained that drivers on the anti-clockwise carriageway faced delays of two hours, while those heading clockwise were expected to be disrupted by up to 90 minutes.

Meanwhile, Inrix said the M26 in Kent was also closed in both directions between the M20 and the M25, but the coast-bound carriageway had since reopened.

The A25 through Chipstead, Oxted and Westerham was also slow with anti-clockwise traffic queueing back to the M23.

Drivers were told to expect delays in the area and to find alternative routes.