VICTORIAN police have released images of a “teen” wanted over an alleged sexual assault in Melbourne’s southwest in February.

Wyndham Crime Investigation Unit detectives collected CCTV footage of a young man, believed to be a teenager, riding around Point Cook on February 28 this year.

He was wearing khaki shorts, a blue hooded jumper and black and white converse shoes. On the front of his bike was a plastic bag.

Police want to speak to him in relation to an incident at 5.30pm that same day when a 17-year-old schoolgirl was allegedly approached from behind while walking home from school.

She told police she was sexually assaulted by a boy on a bike at Spinafex Street before he rode off.

Anyone who is able to identify the boy or with any other information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report online at www.crimestoppersvic.com.au.