Russia and China say they want a summit of permanent members of the UN Security Council amid what they called heightened political turbulence, with Moscow saying they believed the United States was acting in a destructive way.
The two allies, whose relations with the West are under increasing strain, made the call for a UN summit in a joint statement on Tuesday after talks between the countries' foreign ministers.
"At a time of increasing global political turbulence, a summit of the permanent members of the UN Security Council is particularly necessary to establish direct dialogue about ways to resolve humankind's common problems in the interests of maintaining global stability," the statement, published on the Russian foreign ministry's website, said.
Moscow has long been unilaterally pushing for such a summit.
The statement did not mention the United States by name. But Russian Foreign Minister Sergei Lavrov was cited by the TASS news agency as telling a news conference after talks with his Chinese counterpart Wang Yi that Moscow and Washington were both unhappy with US behaviour.
Washington, TASS cited him as saying, was relying on Cold war-era military and political alliances to try to destroy international legal architecture.
Both countries' ties with Washington are strained.
US and Chinese officials on Friday concluded what Washington called "tough and direct" talks in Alaska, while Russia's ambassador is back in Moscow for talks after US President Joe Biden said he believed President Vladimir Putin was a killer.
Kicking off his two-day China trip on Monday, Lavrov issued a call for Moscow and Beijing to reduce their dependence on the US dollar.
Tuesday's joint statement urged other countries to refrain from interfering in the domestic affairs of Russia and China.
Lavrov said Russia and China regarded European and Western sanctions as unacceptable.
On Monday, the United States, European Union, Britain and Canada imposed sanctions on a handful of Chinese officials for alleged human rights abuses in Xinjiang.
Russia is also braced for a new round of US sanctions over what Washington says was its meddling in the 2020 US presidential election, which Moscow denies.