Vehicle fire shuts one lane of M4 between junctions 13 at Chieveley and 12 at Theale
Disruption expected on the busy motorway for several hours
A vehicle fire has closed one lane of the M4 in West Berkshire.
The incident is blocking lane one and the hard shoulder of the eastbound carriageway, between junction 13 at Chieveley and junction 12 at Theale.
It is not known if anyone has been injured in the incident.
The motorway is not expected to fully reopen until around 4.30pm.