Part of the A23 near Crawley has been shut for several hours today (Wednesday February 20) following a serious accident.
Two people have been taken to hospital.
The A23 has been closed and there was queueing traffic both ways between A2004 Southgate Avenue and A264 (Pease Pottage).
The road has now been re-opened.
Emergency services attended.
Traffic problems have been further increased on the A23 Crawley Avenue both ways at A2220 Horsham Road (Cheals Roundabout) because of the construction works.
Restrictions and temporary traffic lights are in place on the roundabout.