An activist group called “Led By Donkeys” in the UK painted the road in front of the Russian Embassy in London in the colors of the Ukrainian flag.

“Tomorrow is the first anniversary of Putin’s imperialist invasion of Ukraine, an independent state and a people with every right to self-determination. The existence of a massive Ukrainian flag outside his embassy in London will serve to remind him of that,” the activist group posted on social media.

The London police detained four activists, three men and one woman, for property damage and obstructing transportation.