Police have released CCTV footage of a man who allegedly raped a 15-year-old girl in Sydney’s south-west earlier this year.

Detectives from the Child Abuse and Sex Crimes Squad began investigating in March following reports a teenage girl had been sexually assaulted by a man she had met briefly once before.

The assaults allegedly occurred in the Belmore and Campsie areas on Tuesday, March 26.

Despite extensive inquiries, detectives have not been able to identify the man.

Vision from Belmore Train Station shows a man of Middle Eastern appearance, aged in his late 20s, with dark hair and a full beard.

Sex Crimes Squad Commander, Detective Superintendent John Kerlatec, has made the footage public in a desperate attempt to catch the man.

“I urge members of the community to look closely at the image and if you recognise the man, please contact police.”

Anyone with information should call Crime Stoppers on 1800 333 000