M4 drivers face a longer trip than usual after the motorway closes when a sweeper rolls over.

The accident occurred on the westbound carriageway of the motorway between Exit 13 at Chieveley / Newbury and Exit 14 at Hungerford.

The road was closed for accident investigation work after the incident at around 9:05 a.m. and emergency services are on site.

READ MORE: Live M4 traffic news as motorway closes due to sweeper overturn

National Highways says it’s likely the road will be closed until around 11:30 a.m. on Monday, December 6, although that may well change.

Long queues form around the incident and drivers are advised to avoid the area.

Diversion route

• A detour has been put in place which will allow motorists to leave the motorway at exit 13 towards the A34.
• From there they should follow the A34 towards Newbury, then take the A4.
• After that they must join the A338 via Newbury and Hungerford before joining junction 14.

You can follow live updates on the incident as it develops in our dedicated live blog.

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