Police are looking for a man who indecently exposed himself to a teenager near Lake Meulog in Rhosneigr.
A 17 year-old boy was out running near the Ty Hen caravan park between 4pm and 4.30pm on Thursday 22nd August when he was approached by the flasher.
Detectives say there were other people in the area at the time and are keen to hear from anyone who remembers seeing a man with dark trousers around his ankles ”purposely exposing himself”.
Anyone with information should contact PC Thomas at Llangefni police station on 101 or Crimestoppers anonymously on 0800 555 111, quoting reference no. 20000501504.