A flasher targeted a woman in broad daylight in Luton on Friday.
The 20-year-old was walking home down the alleyway in the Bracklesham Gardens and Telscombe Way area at about 2.45pm when she became aware of a man walking behind her.
He called to her and as she turned around he indecently exposed himself to her.
The victim hurried off and the flasher is believed to have turned back in to the alleyway and headed off in an unknown direction.
The flasher is described as a white man in his late twenties to mid-thirties, six feet tall and of slim to medium build. He wore a beanie hat and a mid-length parka-style winter coat. He spoke with a local accent.
Call 101 with information.