ussia has formed an Iskander missile brigade in its region bordering new NATO member Finland, while another alliance member, Poland, warned of the nuclear-weapons risk that Moscow poses.

The Iskander-M ballistic missiles can fire conventional as well as nuclear warheads. Kremlin-friendly newspaper Izvestia reported that the system is key to the presence in Russia’s Karelia Republic of the Leningrad Military District (LMD), which was formed after Helsinki joined the alliance last April.

Meanwhile, Poland’s President Andrzej Duda said in an interview released Monday that Warsaw is willing to allow NATO allies to deploy nuclear weapons on its territory, in light of the nuclear threat that Moscow presents to the alliance.

Russian Ministry of Defense sources told Izvestia that a separate missile brigade had been formed equipped with the Iskander systems, which were likely part of a corps within the LMD.

Newsweek has emailed the Russian Defense Ministry for comment.