Top diplomatic officials from China and Russia admonished the U.S. on an array of issues ranging from multilateral agreements to sanctions policy at the United Nations on Friday, portraying Washington as stepping back from world commitments while their own countries were expanding global engagement.

Russian Foreign Minister Sergei Lavrov and Chinese Foreign Minister Wang Yi were among the speakers scheduled near the end of a week of addresses by world leaders at the U.N. General Assembly. Neither Russia’s Vladimir Putin nor China’s Xi Jinping came to the annual gathering this year, sending their leading diplomats instead.

The two men spoke in the wake of an outbreak of tensions between both countries and the U.S. over the course of the week. The U.S. and Russia clashed at the Security Council over international policy toward Iran and North Korea, while President Trump charged Wednesday that China was meddling in U.S. elections by targeting voters with newspaper ads—a new level of friction with Beijing.

Of the two diplomats, Mr. Wang was more restrained in his speech to the General Assembly, while Mr. Lavrov at a news conference and in his U.N. address lashed out at Mr. Trump and declared relations with the U.S. were at an all-time low.

“President Trump is saying sovereignty is the main thing and all these multilateral things are secondary,” said Mr. Lavrov at his news conference. “If the U.S. is so committed to sovereignty then it should not interfere in the affairs of other countries.”