Cairn Energy's Stena Don oil rig is scaled by Greenpeace campaigners to prevent it from drilling off the coast of Greenland.
The four expert climbers used inflatable speedboats to dodge Danish Navy Commandos before climbing up the inside of the rig and hanging from it in tents suspended from ropes, halting its drilling operation.

The climbers have enough supplies to occupy the hanging tents for several days. If they succeed in stopping drilling for just a short time the the operators Cairn Energy, will struggle to meet a tight deadline to complete the exploration before winter ice conditions force it to abandon the search for oil off Greenland until next year.