In a letter to the Chief Executive of the Financial Conduct Authority (FCA), Lord Sarfraz and Tom Tugendhat MP, Chair of the Foreign Affairs Committee, called on the FCA to issue immediate and detailed guidance to all cryptoasset firms on dealing with customers in jurisdictions where UK sanctions apply.
See coverage in the FT here:
EU looks at preventing use of crypto to avoid Russia sanctions (Financial Times)
Crypto exchanges resist calls for ban on Russia transactions (Financial Times)