WASHINGTON: US President Joe Biden and Russian President Vladimir Putin will speak via video call on Tuesday, amid mounting tensions over Ukraine, BBC has reported.

It comes after Secretary of State Antony Blinken said the US had evidence that Russia had made plans for a “large scale” attack on Ukraine.

Blinken said it was unclear if Putin had made a final decision to invade.

Russia has denied any such intention, and accused Ukraine of executing its own troop build-up, the BBC report said.

Ukraine says Russia has deployed armoured vehicles, electronic warfare systems and 94,000 troops along their shared border.

It is the largest massing of Russian forces on its borders since it annexed Crimea from Ukraine in 2014.

Citing intelligence reports, Ukraine’s Defence Minister Oleksii Reznikov said Moscow could be planning a military offensive at the end of January.

The Russian troop movement has strained already tense relations between Russia and the US.

(With inputs from BBC)