Russia's ambassador to the U.S., Anatoly Antonov, took off Sunday from Moscow for New York, from where he will return to his base in Washington three months after being recalled.

It was announced on Wednesday that the two ambassadors would soon return to their posts after talks between the Russian and American presidents in Geneva.

"Given the results of the meeting between the two presidents, I am counting on constructive work with my American colleagues to build equal and pragmatic relations," Antonov told the Ria Novosti agency, adding he was in an "optimistic mood."

Amid escalated tensions between Moscow and Washington, Russia called its U.S. ambassador back to Moscow for consultations in March, after U.S. President Joe Biden described his Russian counterpart Vladimir Putin as a "killer" who would "pay a price" for alleged election meddling.   

A month later, U.S. Ambassador to Russia John Sullivan returned to Washington to discuss bilateral ties with colleagues. 

Putin and Biden held their first face-to-face summit on Wednesday after Biden took office in January. Though the two leaders did not reach major agreements on some contentious issues, Biden said his objective to outline "some basic rules of the road" had been achieved, while the Russian president described the conversation as "absolutely constructive."

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