Two climate activists were arrested on Wednesday after spraying orange corn flour on Stonehenge in a bold move aimed at pressuring the U.K. government to cease fossil fuel use.

The activist group Just Stop Oil claimed responsibility for the demonstration, stating that the next government must commit to a legally binding treaty to phase out fossil fuels by 2030, coinciding with the upcoming general election on July 4.

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Video shared on social media by the group captured protesters using fire extinguishers to spray orange corn flour on the stone monoliths, while others shouted for them to stop.

Wiltshire Police confirmed the arrest of two individuals, identified as Niamh Lynch, 21, and Rajan Naidu, 73.

In recent years, climate protesters have employed provocative tactics to underscore what they view as the inadequacy of incremental climate policies and to challenge public apathy. These actions have included gluing hands to museum artworks and throwing food, although organizers assert no intent to cause lasting damage.

Just Stop Oil clarified that the orange corn flour used at Stonehenge would wash away in rain, minimizing permanent impact.

Despite the group’s claims of peaceful intent, the protest drew sharp criticism from U.K. politicians. Prime Minister Rishi Sunak labeled Just Stop Oil’s actions disgraceful, while Labour Party leader Keir Starmer condemned the damage to Stonehenge as outrageous, advocating for legal consequences.

Nevertheless, Just Stop Oil vowed to escalate protests by targeting similar structures across Europe if governments fail to take substantial climate action.