A woman was attacked in an alleyway by two hooded men.
Police are appealing for witnesses after the attack in Boundstone Lane, Sompting, on April 7.
The 31-year-old victim had just walked into the alleyway on west side of the road when she was hit on the head from behind by two men.
She managed to kick one and a member of the public shouted causing them to run off.
The suspects were wearing black hoodies with the hoods up.
PC John Percival said: "This is a concerning incident which left the victim very shaken. We would like to speak to anyone who was in the area at the time who may have witnessed the incident and certainly to the member of the public who intervened."
Anyone with information should call 101 or email firstname.lastname@example.org serial 0555 of 07/04.