Seven unexploded bombs have been found on the seabed of The Wash by contractors building an off-shore wind farm.
DONG (Danish Oil and Natural Gas) Energy is installing 75 turbines on Race Bank – some 16.8 miles off Blakeney Point on the north Norfolk coast and 17.4 miles off Chapel St Leonards, north of Skegness.
Cables from the wind farm will come through marshland at Sutton Bridge and then go underground to a substation at Walpole in Norfolk.
A spokesman for DONG said: ““A pre-construction survey for the Race Bank offshore wind farm has so far identified a number of confirmed incidences of unexploded ordinance (UXO), with other possible cases still being checked.
“Following approved procedures, confirmed UXOs are marked with buoys and then, subject to permission being granted by the Marine Management Organisation, they will be safely detonated by a specialist contractor.”
Dredging boats have been moored at King’s Lynn.