Presidents Gitanas Nauseda of Lithuania, Andrzej Duda of Poland and Egils Levits of Latvia have sent a joint letter to NATO Secretary General Jens Stoltenberg and member states’ leaders to warn them of the threats posed by the developments in Belarus, Report informs via LRT.

The three leaders say that cooperation between Moscow and Minsk undermines the security of the region and the entire Euro-Atlantic area, Nauseda’s office said in a press release on Friday.

The presidents note that Russia has been using Belarus’ territory and its resources for its illegal and brutal war of aggression against Ukraine, which shows increasingly closer military integration between the two countries.

“Its recent manifestation has been the deployment of tactical nuclear weapons on the territory of Belarus. It presents an escalatory move in the context of the war in Ukraine and a direct threat to the security of our community,” the letter reads.