DI John Turner, of Force CID at Abingdon police station, said: This was a particularly nasty incident as the victim was walking with her child at the time, so I am keen to speak to anyone who may have seen someone acting suspiciously in the area around the time of the incident.
“I would like to use this opportunity to continue to remind people to be aware of their personal safety and follow the crime prevention advice available on our website."
If you have any information please contact DI Turner via the Thames Valley Police Enquiry Centre on 101.
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