
A British man is accused of helping a Russian man evade US sanctions.
Graham Bonham-Carter was arrested on Tuesday accused of funding properties purchased by one of Russia's most controversial billionaires.
The US Department of Justice said that Mr Bonham- Carter is accused of moving his artwork outside the country.
The US wants to extradite Mr Bonham- Carter.
Mr Bonham- Carter, who is based in London and is the second cousin of actressHelena, was released on bail after appearing before the court.
The UK imposed sanctions on seven Russian tycoons in March as part of the government's response to Russia's invasion of Ukrainian.
A number of high-value properties in the US and the UK are thought to have been held for the benefit of the Russian.
The UK's National Crime Agency secured the freezing of Mr Bonham-Carter's bank accounts for six months after it was alleged that his accounts contained money linked to Mr. deripaska.
Mr Bonham- Carter is accused of conspiring to violate and evade US sanctions in violation of the International Emergency Economic Powers Act.
The maximum sentence for each charge is 20 years.
Mr Bonham- Carter is accused of engaging in more than $1m worth of illegal transactions to fund real estate properties in the US for Mr Deripaska.
The businessman is said to have been told to set up a company to manage his properties in New York and Washington DC.
It has been estimated that Mr. Deripaska's wealth is more than $2 billion.