Russia warned on Tuesday that any attempt to blockade the Kaliningrad Region by the UK or NATO will be met with a response using all means, including nuclear weapons.
In a statement on Telegram, the Russian Embassy in London said this while responding to UK media reports that discussed the possibility of a NATO blockade of Kaliningrad or non-recognition of Russian sovereignty over the region.
Source: https://aa.com.tr/en/eurasia/russia-warns-of-nuclear-response-to-any-kaliningrad-blockade/4072541