AN overturned lorry on the A34 is still causing delays to traffic near Bicester.
Police said drivers could continue to expect severe delays along the A41 from Bicester heading towards the junction with the M40.
A diversion was in operation earlier.
Police said there was congestion on the A41 to the B4030 Oxford Road and on the M40 to Junction 10 at Ardley.
The road was fully closed southbound this morning, but early this afternoon one lane was re-opened past the scene.
The lorry will be fully recovered this evening after the rush hour.
Southbound traffic was earlier diverted to Junction 8a on the M40 and via the A40 to rejoin the A34 at Peartree.
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