There is a “high probability” that US President Donald Trump and Chinese leader Xi Jinping will meet this year, US Secretary of State Marco Rubio said Friday.

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.

The conclusion follows a meeting between US Secretary of State Marco Rubio and Russian Foreign Minister Sergey Lavrov on July 10 in Kuala Lumpur, Malaysia. Rubio said he used the meeting to convey President Donald Trump’s frustration with Russia’s lack of “flexibility” on ending the war.

Secretary of State Marco Rubio met counterparts in Southeast Asia during his first visit to the region since taking office.

U.S. Secretary of State Marco Rubio met with Russian Foreign Minister Sergei Lavrov on the sidelines of the ASEAN foreign ministers' meeting in Malaysia on Thursday, as Russia intensifies its attacks on Ukraine.

The meeting between Russia and the U.S.’s chief diplomats comes on the heels of a phone call between Trump and Putin.