UK's Cameron: outrageous of Russia to reject Kremlin critic Kara-Murza's appeal

British foreign minister David Cameron condemned Russia on Tuesday for rejecting an appeal by Kremlin critic Vladimir Kara-Murza against his 25-year jail sentence for treason and other charges.

"It is an outrage that Russia has rejected Vladimir Kara-Murza's appeal against his sentence. Vladimir, a British national, has committed no crime," Cameron said on social media.

"He is a political prisoner, held by Russia in revenge for speaking out against the war, and should be released immediately."