Thames Valley Police is releasing an image of a man officers would like to speak to as they may have vital information regarding reports of an indecent exposure in Milton Keynes.
The incident occurred on Friday 28 July around 6.15pm in the Wolverton Road area.
The victims, two girls in their teens, were travelling in a taxi when another male passenger exposed themselves.
Investigating officer PC Thomas Templar, based at Milton Keynes police station, said: “We would like to appeal to anybody who recognises the man in this image or if it is you, to please get in touch as they may have vital information about this incident.
“You can get in touch by either making a report online or by calling 101, quoting reference number 43230336119.
“Alternatively, for 100% anonymity, you can also call the independent charity Crimestoppers on 0800 555 111.”