Former Soviet president Mikhail Gorbachev has died at the age of 91.
Mr Gorbachev is best known for opening up the USSR and for bringing the Cold War to a peaceful end, but he was unable to prevent his country collapsing in 1991.
News organisations quoted a statement from Russia's Central Clinical Hospital as saying he died after a long illness.
Tributes have flowed from world leaders and politicians following his death.
Prime Minister Boris Johnson said: “In a time of Putin’s aggression in Ukraine, his tireless commitment to opening up Soviet society remains an example to us all.”
