Factbox-What is the G20 and which leaders are attending the Bali summit?

NUSA DUA, INDONESIA - NOVEMBER 15: President Joe Biden of the United States (L) is greeted by the President of the Indonesian Republic Joko Widodo during the formal welcome ceremony to mark the beginning of the G20 Summit on November 15, 2022 in Nusa Dua, Indonesia. The G20 meetings are being held in Bali from November 15-16. Leon Neal/Pool via REUTERS

Heads of government from the world's Group of 20 (G20) major economies started a summit meeting on the Indonesian island of Bali on Tuesday that is marked by deep rifts over the war in Ukraine and concerns over the spike in global inflation.

The Nov 15-16 summit is the first among G20 leaders since Russia invaded Ukraine in what Moscow has called a "special military operation".