The UK has frozen the assets of six Russian prison bosses in charge of the Arctic penal colony where opposition leader, Alexei Navalny died.
The sanctioned individuals will also be banned from travelling to the UK.
Western leaders say the blame for Navalny’s death lies with the Russian authorities, including President Putin.
The British government has also called for Navalny’s body to be released to his family immediately and for a full and transparent investigation to take place.
