The UK government imposed a full asset freeze and travel ban on seven Russians on Thursday, in the country's most aggressive crack down on billionaires since Russia's invasion of Ukraine.

The UK government accused the owner of the football club of benefiting from his close ties to the Russian president.

As billionaires from the US and elsewhere circle the football club for a purchase, the move immediately complicates the plans ofAbramovich.

The government said that the worth of those on the new sanctions list is 2 billion dollars.

Also on the list are Alexander Miller, chief executive of energy company Gazprom, and Nikolai Tokarev, president of the Russian state-owned Transneft.

The UK Treasury's Office of Financial Sanctions Implementation published a list of people who were accused of being involved in destabilising and threatening Ukraine. The OFSI said that Evraz has been involved in providing financial services, making available funds, economic resources, goods or technology that could contribute to destabilising Ukraine.

Boris Johnson said that there can be no safe haven for those who supported Putin.

Today's sanctions are the latest step in the UK's support for the Ukrainian people. We will be ruthless in pursuing those who allow the killing of civilians, destruction of hospitals and illegal occupation of allies.

Today's sanctions show that kleptocrats have no place in our economy or society. They are involved in Putin's aggression because of their close ties to him.

The Ukrainian people have blood on their hands. They should hang their heads in shame.

She said that the support for Ukraine would not be broken. We will not stop in our efforts to put more pressure on the Putin regime.