A former Ukrainian president says Russia is on course to be a "very, very big North Korea" unless it ditches Vladimir Putin.
Petro Poroshenko, who was in office between 2014 and 2019, said he had extensive dealings with the Russian president - but said the Russian leader never delivered on promises.
Mr Poroshenko said ordinary Russians would soon come to feel the effect of devastating sanctions, adding that he is "absolutely confident that Russia has the fate of a very, very big North Korea".