According to traffic reports, there are heavy queues after the collision on Titnore Way.
Titnore Lane is partly blocked, traffic sources said.
Meanwhile, delays are said to be increasing on Sompting Bypass westbound between A27 Upper Brighton Road and A27 Warren Road (Offington Corner).
There are also queues on Crockhurst Hill eastbound between A27 Arundel Road and A27 Upper Brighton Road.
Delays are reportedly increasing on A27 Upper Brighton Road westbound between A270 Upper Shoreham Road (Southwick / Holmbush turn off) and Grand Avenue.
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