Two lanes of the M25 have been blocked causing serious delays following a crash near Chertsey.

The incident involving two cars occurred between Junctions 12 and 13 with traffic now queuing back to the Staines turn-off.

Delays of up to 25 minutes are expected for drivers travelling in that direction.

According to Highways England, emergency services are on the scene and it's understood that one vehicle has overturned.

Highways England have also asked for drivers to avoid slowing down to get a glimpse of the incident as doing this could impede emergency service workers and put others in danger.

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Updates as we get them.