JAKARTA: Indonesia will remain impartial as the rotating chair of the G20, the country's top diplomatic negotiator said Thursday, following mounting calls that Russia be barred from the forum's meetings, reports AFP.

Dian Triansyah Djani made the statement after Russia's ambassador to Indonesia confirmed on Wednesday President Vladimir Putin planned to attend the November heads-of-state summit in Bali.

"We will remain as an impartial chair and will find solutions for any issues that may arise," the country's G20 co-sherpa said at a briefing with journalists.

Australia's Prime Minister Scott Morrison said Thursday that letting Vladimir Putin sit with other world leaders at the same table for this year's G20 summit would be "a step too far".

And former UK prime minister David Cameron called on Western countries to boycott the leaders' summit if the Russian president was going, in an opinion piece published in the Wall Street Journal this week.

But some other G20 members are likely to veto a ban, and China already insisted Russia was an "important member" of the group.

Djani confirmed that the invitations to "save the date" for the leaders' summit were sent to all G20 members, including Moscow, on February 22 -- two days before Russia's invasion.

He further underlined that Indonesia would focus on economic issues and global recovery given that the "G20 was the premier international economic forum", implying that the invasion would largely be kept off the agenda.