The incident occurred between 12.45pm and 1.30pm on Friday, August 8, a man was making indirect hateful comments in Pioneer Square, Bicester.
There were no victims, but a man has been arrested and released on police bail.
Thames Valley Police are now appealing for witnesses following the public order incident.
READ MORE: Houses evacuated by police as officers make two arrests
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Investigating officer, PC Freya Browne, said: “I would urge anyone who may have been in the area or who may have information about this incident to please contact us.
“If you have any footage from the area around the time of the incident, please check any recordings in case it has captured something that could assist our investigation.
“You can contact us by calling 101 or making a report online, quoting reference 43250403256.
“Alternatively, you can make an anonymous report on Crimestoppers’ website or by calling 0800 555 111.”