A teenager was assaulted in Alexandra Park.
The 18-year-old victim told police he was approached by a man who put his hand over his mouth and attacked him near the children’s play park.
The attack happened at around noon on Wednesday, June 5.
Detective Constable Paul Harrison, of Hastings Adult Protection Team, said: “I’m keen to speak to anyone who may have been in Alexandra Park that day and saw anything suspicious.”
Anyone with information is asked to call DC Harrison on 101.