Overturned van causing major delays on the M4

There are severe delays on the M4 westbound between junctions 8/9 to 10 due to an accident involving an overturned van.

The Highways Agency is reporting the westbound entry at junction 8 is closed and the road is not expected to re-open until 3.45pm.

The Royal Berkshire Fire and Rescue Service (RBFRS) has tweeted that crews from Maidenhead and Slough have freed a person from an overturned van between junctions 8/9 and 10.

It warns of heavy congestion as a result of the accident.

UPDATE 4.30pm:

The Highways Agency is now reporting minor delays heading westbound, with one lane remaining closed following the incident. 

Normal traffic conditions are expected from 6pm.

UPDATE 5.25pm:

The van driver involved in the crash has been taken to Royal Berkshire Hospital, in Reading.

His injuries are not thought to be life-threatening.