“Tomorrow, President Biden will talk with Ukrainian President Zelensky to discuss the growth of Russia's military forces on the borders of Ukraine,” the White House press service quoted RIA Novosti as saying.

After that, the American leader will call the leaders of the Bucharest Nine to inform them about his call with Russian President Vladimir Putin.

The Nine countries include Bulgaria, Czech Republic, Lithuania, Latvia, Estonia, Hungary, Poland, Romania and Slovakia.

Earlier it became known that US military officials are not yet consulting on strengthening NATO's eastern flank.