Russia's opposition figure Alexei Navalny, a fierce critic of Vladimir Putin, who was allegedly poisoned using a Soviet-era nerve agent Novichok has come out of the medically induced coma, according to the hospital in Berlin where he is being treated.

Alexei Navalny out of induced coma, responds to verbal stimuli

Germany has threatened Russia with sanctions over poisoning of Russian critic Alexei Navalny. German Foreign Minister Heiko Maas said that Moscow must come clean on the poisoning of the Russian opposition leader.

Germany threatens Russia with sanctions over poisoning of Alexei Navalny

Mr Navalny was flown to Berlin after falling ill on a flight in Siberia last month, and remains in a coma.

Alexei Navalny | Russia to probe attempted murder angle | WION-DW partnership