Russia has warned Lithuania of “serious” consequences after it banned the rail transfer of some goods to one of its territories.

Lithuania says it is only following the European Union sanctions imposed over Moscow’s invasion of Ukraine.

The strategic region where Russia’s Baltic Fleet is headquartered has no border with mainland Russia.

The western territory was annexed from Germany after World War Two in 1945, and is bordered by EU and Nato members Lithuania and Poland.

The region – where an estimated one million people live – relies heavily on imports of raw materials and spare parts from Russia and the EU.

The country’s Regional Governor said the ban would cover around 50 per cent of the items that Russia imports.