Relations between the two countries have collapsed over the Ukraine war, with the U.S. slapping thousands of sanctions on Russia, and militarily, economically and diplomatically supporting Ukraine.

The meeting is the highest level of contact between the two nations since the discovery of a Chinese balloon in U.S. airspace at the beginning of this month.

The two diplomats will meet for the first time in the aftermath of the balloon crisis earlier this month.

Secretary of State Antony Blinken called off his trip to China after the discovery of a Chinese "surveillance" balloon over the U.S. It's the latest setback in an increasingly fraught relationship.

Antony Blinken is on a trip to Kyiv, where he visited a children's hospital and met with U.S. Embassy staff. The U.S. announced nearly $3 billion in aid and weapons for Ukraine and other countries.

China's support for Russia's war in Ukraine is complicating U.S.-Chinese relations at an already difficult time, U.S. Secretary of State Antony Blinken told his Chinese counterpart.

It is important that the Ukrainians define the terms of any potential negotiation, Blinken tells NPR, while the U.S. makes sure that the country has the means to repel Russian aggression.

A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

"Based on information currently available, the U.S. government assesses that members of Russia's forces have committed war crimes in Ukraine," Secretary of State Antony Blinken said.

"Based on information currently available, the U.S. government assesses that members of Russia's forces have committed war crimes in Ukraine," Secretary of State Antony Blinken said.

The prospect that the U.S. and its allies could impose new sanctions on Russian oil pushed energy prices sharply higher. The average price of gasoline in the U.S. hit $4.06 per gallon.

Speaking in Moldova, Secretary of State Antony Blinken urged Americans to leave Russia and vowed to support any American being held by Russia.

Secretary of State Antony Blinken and his Russian counterpart, Sergey Lavrov, ended talks in Geneva with no major breakthroughs but an agreement to keep talking.

The Biden administration hopes to make deeper inroads in Southeast Asia but lags far behind China, which has already built up major trade ties, as well as roads and a high-speed rail.

"We are committed to Ukraine's sovereignty and territorial integrity and will continue to provide Ukraine the support it needs," a senior State Department official said.