Russian President Vladimir Putin would like to meet US President Joe Biden in person, he told his counterpart during their video call on the Ukraine crisis. The Kremlin said Putin and Biden had also agreed to hold more talks during their virtual summit on December 7 amid tensions between the West and Russia over Moscow’s intentions towards Ukraine. “We’ll definitely meet [in person], I would really like that,” Putin said in response to Biden’s regret that they did not meet each other at the G20 summit in Rome, according to Kremlin spokesman Dmitry Peskov.

During the call, Biden warned Putin of “devastating” economic consequences if Russia invades Ukraine, while Putin demanded guarantees that NATO will not expand farther eastward.

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In a video released on state TV Rossiya-1, Peskov said that Putin had no particular grounds for optimism after speaking to Biden because of serious differences between Russia and the US over what Moscow considers “red lines” on the Ukraine crisis.

The Group of Seven (G7) nations Sunday warned Russia that military aggression against Ukraine will have “massive consequences and severe cost,” according to a draft statement reported by news agency Reuters.

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British Foreign Secretary Liz Truss said her counterparts from the United States, Canada, France, Germany, Italy and Japan are clear that any incursion by Russia into Ukraine “would have massive consequences for which there would be a severe cost.”

US intelligence has reportedly warned that Russia could be planning an invasion of Ukraine “as soon as early 2022” with 100 battalion tactical groups.

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Ukraine has said the movement of Russian troops and weapons to the border is an attempt to “provoke return fire.”

Russia has also been running “training camps under the leadership of regular servicemen of the Russian Armed Forces,” while also increasing its military presence near the border “with additional 122-millimeter self-propelled artillery vehicles, tanks and infantry fighting vehicles,” Ukraine’s Defense Ministry said in a statement earlier this week.