A London-based anti-Putin campaigner has called on Boris Johnson to freeze the assets of thousands of Russian citizens in the UK in a bid to root out those with ties to the Kremlin.
Andrei Sidelnikov said he told the prime minister to impound the property and bank accounts of emigrants with unexplained wealth, connections with the Russian embassy in London, ties to pro-Putin oligarchs, and of those involved in organising cultural events linked to the Russian state.
