UPDATE:: M4 eastbound lane closed in West Berkshire

UPDATE at 17.01:

The M4 in Berkshire has re-opened eastbound, but lane 1 of 3 remains closed. Delays of 45 minutes above normal travel times are now expected.

National Highways; East has issued an alert that the M4 in Berkshire is closed eastbound within J14 following a collision which resulted in a vehicle fire.

They say traffic is being diverted via the exit and entry roads at J14.

Delays of 50 minutes above normal traffic times, please allow extra time for your journey.