US President Joe Biden dispatched CIA Director Bill Burns to Moscow to warn the Kremlin that the US is closely monitoring its troop buildup near the Ukrainian border and to try to determine what is driving Russia's actions, CNN reports..

One of Burns's rare trips to Russia, where he held talks with senior Kremlin security officials who were directly involved in the hostilities, is organized as the United States is increasingly concerned about the irregular movement of troops and equipment from Russia near Ukraine's northern border, according to.

The Biden administration is taking recent Russian troop movements seriously, even after an earlier build-up in the spring did not ultimately lead to a new invasion..

Tensions between Ukraine and Russia have also escalated in recent weeks due to the deepening Ukrainian energy crisis, which Kiev believes was provoked by Moscow..

[see_also].

United States monitors unusual RF activity near Ukrainian border.

[/ see_also].

Also, according to Pentagon spokesman John Kirby, the United States is monitoring the " Kirby noted that the department "