Swastika graffiti has been sprayed on a wall in Royston.
Shortly before 6pm on Saturday, the discovery of swastikas at the rear of the Tesco Express in Market Hill was reported.
Officers are now looking into the incident of racially or religiously aggravated criminal damage.
If you have information about this crime, report it online at herts.police.uk/report, speak to an operator in the Force Communications Room via online web chat at herts.police.uk/contact or call101 quoting the reference number 41/18220/21.
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