Victoria Police have released CCTV images of a teenage boy they would like to speak to in relation to the sexual assault of a 17-year-old girl.

Officers said the teenage girl from Point Cook was walking home about 5.30pm on February 28 when she was approached from behind by a boy on a bike, who allegedly sexually assaulted her before riding off.

Investigators on Tuesday released CCTV images of a teenage boy they want to talk to about the incident.

He is is believed to be aged in his mid-teens, and was wearing khaki shorts, a blue hooded jumper and Converse shoes.

Anyone who is able to identify the boy or provide 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.

Share your comments below