Police want to trace a cyclist who was in collision with a pedestrian.

A 47-year-old man was treated for a broken leg following the accident on the pavement/cycle lane near the bowls club in Preston Road, Brighton.

Although the cyclist stayed with the casualty until the ambulance arrived, it appears he and a potential witness both left the before police arrived.

Officers investigating the incident, which happened at about 10.50am on May 17, want to speak to them or anyone else who may have seen it.

Anyone able to help should email collision.appeal@sussex.pnn.police.uk or phone 101, quoting serial 479 of May 17.