Climate change activists pretended to drown themselves in oil and gas in a nightmarish protest outside a United Nations agency in London on Friday, gory photos of the stunt show.

The Ocean Rebellion campaigners staged the frightening demonstration on the steps of the International Maritime Organization — the UN agency responsible for regulating maritime transport.

Footage showed one activist, dressed as an “ocean goddess,” donning a fish bowl over her head as another poured in fake black oil to make it appear as if she was drowning.

The woman could be seen screaming as the liquid engulfed her face before it quickly drained from the bowl.

Others around her wore gas masks and brandished petrol pumps with flames spouting out of them.

The demonstration unfolded on the final day of meetings for the agency’s Marine Environment Protection Committee, which had convened to discuss reducing greenhouse gas emissions from ships.

The campaigners have accused the agency of manipulating the fossil fuel industry and failing to protect the ocean.

“Today, at the UN International Maritime Organization, artists staged a powerful protest against Liquid Natural Gas,” the group wrote on X in the aftermath.

“A drowning ocean goddess symbolizes the dire threat Liquid Natural Gas poses to our oceans.”

“Liquid Natural Gas is not a ‘green’ solution. Methane leaks from LNG ships are 80x more damaging than CO2. The IMO must wake up to this reality before it’s too late,” the group continued.

“The IMO is failing to protect our oceans. LNG is a dirty fuel disguised as clean. We demand transparency and accountability. Stop listening to fossil fuel lobbyists, start protecting our planet!”