Hailed as an "important milestone" by premier Jonas Gahr Store, it is the latest security manoeuvre following Finland and Sweden's recent accession to NATO.

Russia has boosted its military presence in the Arctic region and Finland and Sweden joined the alliance, citing regional security motives heightened by Moscow's 2022 invasion of Ukraine.

"Today we agree to establish a military transport corridor through Northern Norway, Northern Sweden and Northern Finland," Store said in statement following a meeting with his Swedish counterpart Ulf Kristersson and Finnish President Alexander Stubb.

"It will help ensure that personnel and materiel can be quickly moved from Norwegian ports through Sweden and to Finland," he added.

Finland and Sweden dropped decades of military non-alignment after the Ukraine invasion by applying to join the military alliance -- with Finland becoming a member in April 2023 and Sweden in March of this year.

The harsh Arctic region has gained geopolitical importance in recent years, as melting ice due to global warming looks set to open up vital shipping routes and resources.

In March, NATO also staged war games in the region as part of the four-month Steadfast Defender exercise, the largest drills by the US-led military alliance since the Cold War.

Under President Vladimir Putin, Russia has ramped up its capabilities in the Arctic -- home to the powerful Northern Fleet, the Russian navy's biggest, which includes numerous submarines equipped with nuclear warheads.

The Norwegian government said in its statement that the countries' defence ministers would lead the work of establishing the corridor.

"Together, they will identify bottlenecks, update necessary regulations and legislation, and invest in the necessary infrastructure to ensure fast and efficient military mobility," the statement said.