A crash on the Chiswick flyover is causing delays on the M4 and surrounding roads.

Emergency services are at the scene of the collision, on the eastbound section of the motorway, near the junction with Windmill Road, Brentford.

Transport for London said at 10am there was a lane restriction in place on the M4 eastbound and traffic was slow on the following roads: Burden Close, Eastbourne Road, Enfield Road, Glenhurst Road, Great West Road,

Grove Road, Windmill Road and York Road.

It is not known at this stage whether anyone has been injured.

More as we get it...