Police have released a description of a man they want to speak to after a report of robbery.
The victim was approached by a young man wearing a clinical face mask who threatened them before stealing a speaker.
The incident happened in Boxhill Park, Boxhill Road in Abingdon, at 3pm on May 30, police said.
The offender is described as a black male, around 6ft tall, of an average build, wearing grey joggers, a grey fleece and a clinical mask covering his face.
Anyone who recognises this description, or has any information that could assist with the investigation, is asked to contact Thames Valley Police by calling 101, or making a report online via the website, quoting reference 43240233366.
Alternatively, if you wish to remain anonymous you can contact the independent charity Crimestoppers on 0800 555 111.
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