Police have launched an appeal for information after a flasher was seen riding to and from woodlands at Burlescombe on a mountain bike.
On Sunday, at 4.30pm, a 16-year-old girl reported a man indecently exposing himself to her in the woodlands between Burlescombe Motors and the canal.
The man has been described as being in his 30s, of average build, around 5ft 8ins tall, with a dark complexion and short, dark hair.
He was wearing a black and grey baseball cap.
PCSO Jonathan Sims said: "The man had a mountain bike with him and appears to have ridden the bike to Burlescombe."
The man may also have been seen sitting on the bench by the canal bridge by the disused railway line at Burlescombe on another occasion, also with a bicycle and possibly wearing grey shorts.
PCSO Simms said the man tried to engage the female in conversation and it is suggested he may have a foreign accent.
PCSO Sims said the incident would have been distressing for the lone young woman and urged anyone with information to contact police.
"Anyone who sees a male matching this description is asked to ring police on 999," he said.
The case is being investigated by Tiverton CID and the crime reference number is CR/097403/14.