Drivers are warned to expect long delays on the M40 after a lorry overturned on the southbound carriageway.
Thames Valley Police were called to a road traffic collision between junctions 5 (Stokenchurch) and 4 (High Wycombe) at 11.06am today.
The overturned lorry is blocking lanes one and two of the carriageway, but lane three remains open.
Updates to follow.
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