The suspicious activity occurred at Broughton Retail Park.
BUSINESSES are being urged to be vigilant of oil thefts after incidents at a retail park.
North Wales Police has said it received reports of two men attending two restaurant premises on Broughton Retail Park on Tuesday.
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Police said they claimed to be from the Environmental Agency, but the restaurants believe they were trying to take their oil, and tried to provide false paperwork.
The men in question arrived in a white Ford transit van.
Police are urging businesses to be vigilant and to report any suspicious activity to 101 or quoting reference B093762.
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