A maritime munitions expert, Michael Fellows, says the cost of decommissioning explosives from the SS Montgomery would be in the region of £3m. The ship, packed with 1400 tons of explosives, has lain derelict in the Thames Estuary since 1944.
Mr Fellows thinks annual surveys of the ship, carried out for the Department for Transport by the Maritime and Coastguard Agency, are not detailed enough as they look solely at the ship, not the state of the munitions.
He's warning that if the explosives were detonated, there could be a large loss of life locally and that plans to build an airport in the Estuary will require that the ship is made safe.
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A coach carrying more than fifty tourists, some believed to be from the Medway towns, has overturned in Scotland.