Four radical person been arrested aft protesters painted the roadworthy extracurricular the Russian Embassy successful London successful the colours of the Ukrainian flag.
Led by Donkeys covered the thoroughfare successful Kensington Palace Gardens successful yellowish and bluish overgarment up of the archetypal day of the warfare successful Ukraine.
The radical said it wanted to punctual Russia's president of Ukraine's "right to self-determination".
The Met Police said 3 men and 1 pistillate remained successful custody.
Led by Donkeys, which began successful 2018 arsenic an anti-Brexit group, said it had poured 170 litres of yellowish overgarment connected the eastbound carriageway and a akin magnitude of bluish overgarment connected the westbound side, with passing postulation past spreading the colours on the road.
Explaining the protestation successful a tweet, the radical said: "Tomorrow is the archetypal day of Putin's imperialist penetration of Ukraine, an autarkic authorities and a radical with each close to self-determination.
"The beingness of a monolithic Ukrainian emblem extracurricular his embassy successful London volition service to punctual him of that."
The Met said officers had been called to the country astatine 08:45 GMT implicit reports of overgarment being thrown connected the road.
It added the 4 radical had been arrested connected suspicion of transgression harm and obstructing the highway, and were each successful custody.
Follow BBC London connected Facebook, Twitter and Instagram. Send your communicative ideas to hellobbclondon@bbc.co.uk