Russia has announced that it will conduct three-day military drills involving its nuclear forces, according to official statements reported by Russian authorities.

Belarus announced Monday that it has begun joint drills with Russia to practice using nuclear weapons that Moscow has stationed on Belarusian soil.

Iran's military began drills near the Natanz nuclear enrichment plant in central Iran, according to state media on Tuesday, ahead of the inauguration of President-elect Donald Trump in less than two weeks, News.az reports citing foreign media.

Russia has commenced the third stage of non-strategic nuclear drills involving troops from the Central and Southern military districts.

Russia said on Wednesday that soldiers and sailors from its northern Leningrad military district bordering NATO members Norway, Finland, Poland, Estonia, Latvia and Lithuania took part in drills to deploy tactical nuclear weapons, News.Az reports citing Reuters.

Russian and Belarusian troops have started the second stage of tactical nuclear drills in Russia, Russia's defense ministry said on Tuesday, News.Az reports citing Reuters.