Boat owners have been warned to "remain vigilant" and to protect their property after a spate of thefts in Loddon.
Two boats moored at Hardley Dyke in Hardley Staithe Road have been targeted in the last month.
In the first incident, which took place sometime between April 29 and May 6, two marine batteries were stolen from a vessel.
The same boat then had its cabin door forced open and a sledgehammer and two rhond anchors stolen between May 10 and May 12.
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A second boat moored along the same stretch of river had its fuel tank drained and equipment stolen sometime between May 12 and May 26.
PC Bassham from Norfolk Constabulary’s Marine Team urged owners to regularly check their boats and to report any suspicious activity.
He also advised they take photos of valuable items such as chart plotters, VHF radios, and outboard engines - noting the make, model, colour, and serial numbers.
Anyone with information about any of the thefts is asked to contact PC Paul Bassham at Norfolk Constabulary on 101 or via email at Broadsbeat@norfolk.police.uk.
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