The southbound A40 has been closed following a incident between a lorry and a pedestrian, between the junction with the Handy Cross Roundabout the A4155 near Little Marlow.
Traffic was at a standstill from 7.30am this morning, with people getting out of theirs stationary cars and walking around the carriage way.
A number of emergency services were at the scene, and drivers were being asked to avoid the area.
The road is said to be now back open.
We'll have more updates on this incident when we get them.
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