Police have released an image of a man who they would like to speak to after he allegedly engaged in a sexual act on a bus.

The incident took place on a number 7 bus travelling from Slough to Heathrow Airport Terminal 5 on Saturday, 19 May.

At around 11:10hrs, a 28-year-old woman boarded the bus at Langley Leisure Centre on Parlaunt Road, Slough.

A man– believed to be aged in his mid 30s – was already sat on the single decker bus.

He began making suggestive noises. The woman turned around and saw the man engaging in a sexual act.

They both got off the bus at the number 6 bus stop at terminal 5, Heathrow Airport shortly after the incident.

The male is described as an Asian man with short brown hair, around 5ft 4ins in height and of a slim build.

He was wearing a black parka jacket with a horizontal blue stripe on the back of it and dark coloured trousers.

Anyone with information can contact police on 101 quoting CAD 2833/19MAY18 or tweet @MetCC.