Russian President Vladimir Putin lashed out at Washington’s support for Kyiv, claiming Ukraine has lost its sovereignty and become a tool of the United States.

The U.S. is using Ukraine as a “battering ram’’ against Russia and other post-Soviet countries, Mr Putin said on Wednesday.

Mr Putin alleged that Washington was increasingly arming Ukraine with heavy weapons in its fight against Russian forces while ignoring that the country is seeking a nuclear bomb.

“It is also known that there are plans for a provocation to use such a so-called dirty bomb,’’ he said once again, a claim that has been slammed by Kyiv and its allies in the West as “nonsense.’’

The Russian leadership has been saying for days that Ukraine plans to use a dirty bomb, meaning a conventional explosive device that disperses radioactive materials without providing evidence.

However, on the other hand, Washington and European capitals had said Moscow could be planning such an attack on Ukraine.

Russian Defence Minister Sergei Shoigu on Wednesday made phone calls to his counterparts in countries such as China and India.

This was to point out such a supposed threat after holding similar conversations with other capitals earlier in the week.

The Kremlin announced that Moscow was also in talks with the International Atomic Energy Agency (IAEA) on the subject.

Kyiv had already invited experts from the UN nuclear watchdog to come to Ukraine to see the blamelessness of Russian accusations.

Mr Putin made his comments during a meeting of representatives from state security bodies of the Commonwealth of Independent States (CIS).

The CIS promotes cooperation among former members of the Soviet Union.

(dpa/NAN)