MV Sirius action against dumpship MVA, Northumberland, as a protest against dumping toxic flyash into UK east coast waters. Activists chain themselves on the dumpvessel and inflatable interfering carrying banner saying: "STOP SEA DUMPING - Greenpeace" Water police interferes. Greenpeace has been campaigning for more than ten years to stem the tide of pollution which threatens the North Sea. The nuclear and chemical industries have been the targets in this year's campaign.