After a spat of recent incidents local police are on the lookout for a man around Teddington Lock.
The man exposed himself to two girls on January 31st before the girls fled the scene – the police received a call just three days later from a 19 year old girl who had also suffered.
None of the victims were touched by the man who has always been described as white.
Sergeant Paul Dowsett said: “I am asking people to remain vigilant when they are out and about in the local area and to report any suspicious activity to police as soon as possible.
“Our officers will be on patrol in Teddington Lock area to reassure members of the community – if you have any concerns please speak to one of the officers or call police on 101.”
Information can also be reported anonymously to Crimestoppers on 0800 555 111.