Police are warning farmers to be on their guard following thefts of irrigation pipes across north Norfolk and Broadland.

Reports in recent weeks have been received from Worstead and Swafield, near North Walsham, and Spixworth. Parts of irrigation systems have been stolen, on occasion causing fields to flood and damaging crops.

Inspector Dave Cuff said: 'We are asking the farming community to be vigilant of anyone acting suspiciously on their farm and surrounding fields.

'If they suspect anything untoward they should contact police immediately by calling 999. In the meantime we are advising farmers to consider etching their property with their details or use SelectaDNA, a property marking solution'.

SelectaDNA is a clear liquid and has a unique DNA strand linked to the registered owner of the property. If any stolen property is found police can trace the rightful owner using the DNA technology. Similarly, if any DNA particles are found on an offender, police can link it to a crime scene.

To report information about a crime call 0845 456 4567, or if you witness a crime in progress always call 999.