Squatters occupy Russian oligarch Oleg Deripaska's London mansion

Squatters have occupied the London mansion suspected of belonging to Russian billionaire Oleg Deripaskawho was placed on Britain's sanctions list last weekunfurling a Ukrainian flag and a banner saying, "This property has been liberated."

Police said they were called in the early hours of Monday after it was reported that the squatters had entered the multimillion-poundmansion in Belgrave Square, in an upmarket area of the British capital that is home to numerous foreign embassies.

"By occupying this mansion, we want to show solidarity with the people of Ukraine, but also the people of Russia who never agreed to this madness," said a statement from the squatters, who described themselves as anarchists.

"You occupy Ukraine, we occupy you."

A number of people gained entry and hung banners from upstairs windows, police said in a statement. Police did not say who reported the incident.

Last Thursday, Britain froze the assets of Deripaska, one of a number of Russian oligarchs targeted in the wake of Russia's invasion of Ukraine, which the Kremlin has called a "special military operation."

Deripaska, who has stakes in En+ Group, a major extractives and energy company that owns UC Rusal, one of the world's major aluminum producers, is worth an estimated 2 billion pounds and has a multimillion-pound property portfolio in Britain, the British government said at the time.

Putin associate

Britain says Deripaska is closely associated with the government of Russia and Russian President Vladimir Putin.

London High Court documents from 2007 identified Deripaska as the beneficial owner of the Belgrave Square mansion. A judge in a court case the year before said the property and another house he owned outside the capital were then worth about 40 million pounds ($66.5million Cdn).

Representatives of Deripaska did not immediately respond to a request for comment. Shortly before the sanctions were imposed, Deripaska said peace was needed as soon as possible in Ukraine and warned that Russia would be different after the conflict.

In their statement, the squatters said the mansion would "serve as a centrefor refugee support" and that other properties would also be targeted.

Britain has sanctioned around 20 Russian oligarchs, including Roman Abramovich and Alisher Usmanov, freezing their properties across London and banning them from coming to Britain.