A motorcyclist is in a critical condition after a three vehicle crash this morning on the approach to the junction 5 exit slip road eastbound on the M4.

Two lanes of the M4 were closed for several hours while an investigation took place, following the crash at 7.20am.

The rider of the black Honda CBF motorcycle, a man in his 40s, was taken to St Mary's Hospital in Paddington where he remains in a critical condition.

Also involved in the collision were a white Volkswagen Transporter van and a red Audi A3.

Investigating officer PC James Lovell of the Serious Collision Investigation Unit, said: "This was a very serious collision and sadly a man is in a critical condition at this time.

"I am particularly appealing to anyone who may have witnessed the collision, or who may have dash-cam footage of the incident which shows the lead up to the incident or the incident itself.

"Please contact us on 101, quoting URN 240 (5/7/18)."