Lanes have been reopened following a three-car crash on the A27 Chichester Bypass, but queues of up to an hour remain.
The incident occurred on the Fishbourne roundabout, causing queuing traffic eastbound.
A spokesperson from Sussex Police said: “Police were called at around 1.30pm following a collision involving a motorcycle and lorry on the A27 Fishbourne roundabout.
“There are no serious injuries reported.
“Recovery work of the vehicles is underway.”