This is the moment Greenpeace activists scaled a BP oil rig to prevent it continuing its journey to the North Sea to drill for oil.
The campaigners scaled the 27,000-ton rig in the north of Scotland as a boat attempted to tow it out of the Cromarty Firth, north of Inverness.
A video filmed by the protesters sees them speeding up to the enormous rig at around 6.30pm yesterday evening - they then climb aboard and unfurl a banner declaring a climate emergency.
Greenpeace activists have scaled a BP oil rig as it was being towed out of the Cromarty Firth, north of Inverness, in Scotland, to prevent it from continuing its journey to the Vorlich Oil field in the North Sea to drill for oil
It is understood the rig was being towed to the Vorlich oil field - located west of the Shetland Islands north of Scotland - where Greenpeace say BP hope to access up to 30 million barrels of oil.
The rig is owned and operated by drilling firm Transocean, which also owned the rig involved in the 2010 Deepwater Horizon oil disaster.
Greenpeace is demanding that BP end its drilling of new oil wells and instead switches to investing in renewable energy.
They said the rig protesters have provisions to remain in place for 'several days'.
The group of five protesters sped up to the enormous rig on a speedboat at around 6.30pm yesterday evening
Greenpeace said the rig protesters have provisions to remain in place for 'several days'
If BP does not do as it demands, Greenpeace should 'wind down its operations, return cash to investors and go out of business'.
In the footage, the group of five campaigners are seen on the boat with water spraying around them as one of them says, 'who's going up first', before they stop next to a ladder fixed to the side of the rig.
The campaigners then climb aboard and a different video filmed from distance shows a figure wearing a helmet and a harness as they climb the ladder's rungs.
One of the activists then appears to communicate with the rig's operators - thought to be BP - as he declares: 'Greenpeace will not allow this rig to go out to the Vorlich oilfield.'
'We are opposed to you drilling a new hole for any oil whatsoever.
'We would like you to desist immediately from this operation,' he added.
In the footage, the group of five campaigners are seen on the boat with water spraying around them as one of them says, 'who's going up first', before they stop next to a ladder fixed to the side of the rig
The campaigners then climb aboard, with the video showing a figure wearing a helmet and a
