The teenager was described as wearing a light-blue-coloured sweatshirt and black trousers.
“We would like to speak with anyone who noticed [him] ... behaving suspiciously in the area – including whether they saw him enter or leave the toilet block (off Fairway Dr) and which direction he went,” the police spokesman said.
Police have been speaking with somebody in relation to the assault and were supporting the victim, he said.
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