Loaded guns found in Middle Level at St Johns Fen End, between Wisbech and King's Lynn
Police are appealing for information after an arsenal of weapons was pulled from a Fenland river.
A diving team from Lincolnshire police pulled a selection of guns from the water - including a semi-automatic shotgun and a high-velocity rifle complete with telescopic sights and a silencer.
The Middle Level Drain was the centre of activity in a joint operation between Norfolk and Lincolnshire officers on Tuesday.
The diving squad from Lincolnshire were called in and recovered four guns and a sword from the waterway near Rungays Bridge, Black Drove at St Johns Fen End.
The weapons are now being investigated and checked to see if they can be linked to any historic crimes and officers are hoping information from the public can help.
The initial information given to police indicated that a shot-gun had been thrown into the drain and the divers were called in.
They found a Beretta semi-automatic 12-bore shotgun; a 12-bore double-barrelled over-under shotgun; a loaded .22 rim-fire rifle with telescopic sight and silencer; a loaded .22-250 high-velocity hunting rifle with telescopic sight and silencer.
Officers also recovered a short sword similar to those used by Viking or Saxon battle re-enactors.
They also pulled more than 300 12-bore cartridges from the water.
Anyone who may be able to provide any information on any of the weapons, or their histories, is asked to contact PC Mallett at Downham Market Police Station on 101 or call Crimestoppers anonymously on 0800 555 111.
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