Businesses in Norfolk have been urged to be vigilant following two incidents of diesel theft.
The thefts, which happened over the weekend, took place in Long Stratton and Frettenham.
Large quantities of diesel were taken after padlocks were cut from fuel tanks.
Broadland Police confirmed that investigations are ongoing and issued advice to prevent further thefts from taking place.
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A spokesman for Broadland Police said: "Try to keep tanks stored close to the property where you can see them.
"If this isn’t possible, consider installing CCTV to watch over isolated tanks and restrict access with walls, fences and hedges.
"Security lighting such as ‘dusk till dawn’ or motion detection lighting can also be an effective deterrent to thieves."
People can also use 'diesel dye' to make the diesel traceable and less attractive to thieves and people should check the oil level in their tanks regularly.
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