Edmonton police released this image from a bus surveillance camera in a bid to identify a suspect in an alleged sexual assault. ((Edmonton Police Service))

Police in Edmonton have released surveillance images from an Edmonton Transit bus in a bid to identify a male suspect in an alleged sexual assault.

The incident happened around 10 a.m. on Jan. 1, when a 12-year-old girl got on ETS bus No. 8 near 59th Street and 118th Avenue, police said in a release.

The girl was approached by an adult male who got on the bus at 9:15 a.m. at 86th Street and 61st Avenue.

Police say the man spoke with the girl before reaching out and allegedly touching her inappropriately several times.

"He followed right away, followed her to the very back of the bus and basically cornered her right in the back of the bus," said Det. Em Chan, with the Edmonton Police Service.

"She was extremely scared, she was nervous, she didn't know how to react, and finally she had the courage to stand up and walk towards the front of the bus," Chan said.

The driver noticed the incident and pulled over, but the suspect brushed by him and got off the bus. Police were called to the area, near 118th Avenue and 47th Street, but were unable to find the man.

The suspect is described as a dark-skinned male in his 20s, approximately 5'7" and 130 lbs., with a thin build. He was clean-shaven, and wearing a white ski jacket with grey patches, with a white Hoody underneath. He was also wearing blue jeans and a grey tuque.

Police are asking anyone who might recognize the man to call Crime Stoppers at 1-800-222-8477.