A woman was indecently assaulted in a recreation ground as she walked home early on Sunday.
The 24-year-old was attacked in Ingham Road, Haverhill, Suffolk, between 0100 BST and 0130 BST.
A man grabbed her from behind, pushed her into a shelter and indecently assaulted her.
The woman struggled free and the man ran off. She was later taken to hospital and treated for minor injuries before being released.
Suffolk Police are keen to hear from a man and woman who are thought to have spoken to the victim before the assault.