Countries buying Russian oil ‘complicit in war crimes’ says Ukraine adviser

Oleg Ustenko, Volodymyr Zelenskiy’s top economic adviser, has demanded more action from European countries over the war in Ukraine. Photograph: supplied

European countries that continue to buy Russian oil and gas, and the London lawyers and bankers who serve Vladimir Putin’s oligarchs, are complicit in war crimes, the Ukrainian president’s top economic adviser has claimed.

In an exclusive interview with the Observer, Oleg Ustenko lashed out at the “unacceptable” failure of major western economies to impose an immediate embargo on imports from Russia.