The AA reported that a three-vehicle crash caused heavy delays on A259 from Fishbourne, with congestion on all approaches of the roundabout through to Emsworth.
Chichester Police in an earlier tweet asked drivers to find an "alternative route" whilst emergency services dealt with the incident.
The road has since been cleared and now fully open and operational with traffic back to normal in the area.
It is not known at this stage whether or not anyone was injured in the incident which took place earlier this morning (2nd April 2022).
The road is now cleat and fully open! https://t.co/oI9IdG6r3k
— Chichester Police (@Chichester_Pol) April 2, 2022