Boris Johnson has warned that the Kremlin is "intent on undoing the good" of Mikhail Gorbachev, as he paid a warm tribute to the legacy of the former Soviet leader.Mr Gorbachev's death at the age of 91 has inspired an outpouring of tributes from world leaders.

Boris Johnson has warned that the Kremlin is "intent on undoing the good" of Mikhail Gorbachev, as he paid a warm tribute to the legacy of the former Soviet leader.Mr Gorbachev's death at the age of 91 has inspired an outpouring of tributes from world leaders.