“I always look forward to negotiations and progress,” RIA Novosti quotes Biden with reference to the White House press pool.

The American leader stressed that during a conversation with his colleague Vladimir Putin, he announced serious sanctions in the event of an aggravation of the situation around Ukraine.

“We will increase our presence in Europe with NATO allies,” he said.

The telephone conversations between Russian President Vladimir Putin and US President Joe Biden lasted 50 minutes.

The White House called the dialogue serious and substantive.

During the conversation, Russian President Vladimir Putin noted the possibility of a complete rupture of relations between the two countries in the event of the introduction of the promised "unprecedented sanctions".