CAPE TOWN — Presidents Putin and XI and other leaders from the Brics bloc of developing countries will hold a virtual meeting on the Israel-Hamas war on Tuesday, with Secretary General Guterres also participating.

The leaders of fellow Brics members Brazil, India, and South Africa, as well as of Saudi Arabia, Argentina, Egypt, Ethiopia, Iran, and the United Arab Emirates, which are set to join the bloc in January, will also take part, according to the office of President Ramaphosa of South Africa.

Mr. Ramaphosa will chair the “extraordinary meeting” because of South Africa’s position as current chair of Brics, his office said. It said the leaders are expected to deliver statements on the “humanitarian crisis” at Gaza and will likely adopt a joint statement.

The meeting comes a day after China’s top diplomat hosted the foreign ministers of Saudi Arabia, Egypt, Jordan, the Palestinian Authority, and Indonesia at Beijing, their first stop on a tour of UN Security Council permanent members. The meeting underlined China’s longstanding support for the Palestinians and its growing geopolitical influence.

Russia has adopted a more cautious approach to the Israel-Hamas war, but also has an opportunity to advance its role as a global power broker.

Mr. Putin has condemned the October 7 attack by Hamas militants on towns in southern Israel that sparked Israel’s offensive in Gaza. More than 12,700 Palestinians Arabs have been killed in Gaza, according to the Hamas-run Health Ministry in the West Bank. Officials there say another 4,000 are missing. Mr. Putin has also warned Israel over its response and against blockading the Gaza Strip.

Russia and China are leading voices in Brics, which has largely cast itself in recent years as standing against the perceived dominance of the West in global affairs. It has also struggled to adopt united policies or positions on many issues because of the differing priorities of the five current members.

India, which also wants to be seen as a leader of the developing world, has long walked a tightrope between Israel and the Palestinian Arabs and historically has close ties to both.

South Africa has been fiercely critical of Israel over the war in Gaza and has filed a request with the International Criminal Court to investigate it over alleged war crimes. South Africa has for years compared Israel’s policies in Gaza and the West Bank with the apartheid regime of racial segregation.