A man allegedly sexually assaulted a teenage boy in his school uniform on the top deck of a bus for 20 minutes.
The victim boarded the Route 179 bus near Ilford station, Greater London, and sat at the back of the top deck on Friday July 2 at about 7.30pm.
According to police, the suspect followed the victim and sat next to him, allegedly trying to engage the victim in sexual conversation which he ignored.
Police said the suspect then sexually touched the victim several times.
Met Police said after 20 minutes of being touched several times, the victim got off the bus and told his mum what had happened and police were told.
The suspect got off the bus several stops later at Southend Road – Woodford Green bus stop, police added.
According to police, the victim filmed the suspect on his mobile phone and detectives have released an image of the man they wish to speak to.
He is described as a male of Eastern European appearance, about 35 years old with receding short brown hair and roughly shaven.
Detective Chief Inspector Michael Dougall, from the Met’s Roads and Transport Policing Command, said: “Do you recall seeing this man in the local area? Were you on the Route 179 bus and witnessed an incident taking place?
“If you know or saw anything, no matter how insignificant you feel it might be, please come forward to us. It is vital we identify this man.”
Anyone who recognises him or has any information is urged to contact police on 07880 429486 or 101 quoting CAD 8095/02July.
Alternatively call Crimestoppers anonymously on 0800 555 111 or tweet @MetCC with any information.