Saudi Arabia opened the G20 summit in a first for an Arab nation, with the virtual forum dominated by efforts to tackle the coronavirus pandemic and the worst global recession in decades.
The two-day meeting of the world's wealthiest nations comes as President Donald Trump refuses to concede a bitter election and campaigners criticise what they call the G20's inadequate response to the crippling economic crisis.
World leaders are huddling virtually as international efforts intensify for a large-scale rollout of coronavirus vaccines after a breakthrough in trials, and as calls grow for G20 nations to plug a €4.3bn funding shortfall.