A man with a 'bowl' style hair-cut has been seen exposing himself in pubic in a 'concerning incident' witnessed by a teenage girl, according to police.

At approximately 3.18pm on Tuesday in Ashenbury Park, the victim, a girl in her early teens, was walking alone through the park where the offender was seen exposing himself.

The offender is described as a white man, of a large build, aged in his thirties and between 5ft 5ins and 5ft 6ins tall, according to Thames Valley Police. 

He is described as having a ‘bowl’ style hair-cut and fringe with shorter hair on the sides, and a stubbly moustache.

He was seen to be wearing a black long-sleeved tracksuit top and black tracksuit bottoms, with three black stripes down the side of the leg.

Investigating officer PC Danielle Scott, said: “This is a concerning incident and we are carrying out a thorough investigation and will have increased patrols in the area.

“As such, I am appealing to anyone who witnessed this incident or has footage to please come forward.

“Additionally if anyone has mobile phone footage, please upload evidence to our online portal.

“Anyone with information can call 101 or report online, quoting reference 43240574101.”