Russia has warned Lithuania that there will severe consequences after it banned the rail transfer of some goods to the Russian territory of Kaliningrad.
Senior security official, Nikolai Patrushev said, Russia will certainly respond to such hostile actions.
Lithuania says it is only following the EU sanctions imposed over Moscow’s invasion of Ukraine.
Kaliningrad is a strategic region where Russia’s Baltic Fleet is headquartered and it has no border with mainland Russia.
The western territory was taken over from Germany after World War Two in 1945 and is bordered by EU and Nato members Lithuania and Poland.