Thames Valley Police is appealing for witnesses following an incident of sexual assault by touching in Milton Keynes.
At around 6.35pm on Sunday a group of girls, have been outside the Co-op on Farthing Grove, Netherfield, when a woman, walked up the girls and started touching them over their clothing.
The girls have then approached a member of the public, who has moved the suspect away from the girls and escorted the offender home. The member of the public has then phoned the police.
The girls have then left the scene. No arrests have been made at this point.
Investigating officer, PC Ellie Daymond, said: “We are investigating this incident and carrying out a number of enquiries.
“This incident was reported to us by the member of the public who intervened in this incident; however the victims have not yet come forward.
“We are encouraging the victims of this incident to please come forward and contact Thames Valley Police via our online pages, or by calling 101 quoting reference 43230417819.
“Additionally if anyone else has information or saw this incident, we would ask them to come forward.”
