The United Kingdom has seized all assets of Chelsea FC owner Roman Abramovich.
He is one of seven oligarchs hit with fresh sanctions, including asset freezes and travel bans over the Russian invasion of Ukraine.
Also affected are billionaires Igor Sechin and Oleg Deripaska, both seen as allies of Vladimir Putin.
Prime Minister Boris Johnson said, “there can be no safe havens” for those who have supported the invasion.
“Today’s sanctions are the latest step in the UK’s unwavering support for the Ukrainian people.
“We will be ruthless in pursuing those who enable the killing of civilians, destruction of hospitals and illegal occupation of sovereign allies,” Johnson said.