The airstrike, carried out with ballistic missiles and cruise missiles fired by Russian strategic bombers based in the Arctic Circle, was the fourth large-scale aerial assault targeting the power syst ...
Prince Mohammed's presence at the international summit has been contentious following the killing of Saudi journalist Jamal Khashoggi at a Saudi consulate in Istanbul in October.
At centre stage was Argentine President Mauricio Macri, hosting this year's summit of G20 industrialised nations.