Secretary of State Marco Rubio said he expressed the United States' frustration that more progress has not been made on ending the war in Ukraine in a meeting on Thursday with Russian counterpart Sergei Lavrov.

U.S. Secretary of State Marco Rubio will meet his Russian counterpart in Malaysia for what could be a testy conversation as tensions between the countries rise over Moscow's increasing attacks on Ukra

The Rubio-Lavrov meeting is happening against the backdrop of Washington resuming arms shipments to Ukraine, which was not well-received by Russia. Trump has increasingly become critical of his Russian counterpart Putin,