Icebreakers Fail to Clear Strait, Russian Tankers Switch Routes After Two-Week Wait

Sanctioned Russian tankers anchored in the Vilkitsky Strait in July after ice trapped them above the Arctic Circle. The strait is a 55-kilometer choke point between the northern Siberian coast and Bolshevik Island on Russia's Northern Sea Route to China. The nearest nuclear-powered icebreakers were several days away.

Only one tanker cleared the passage. The rest waited up to two weeks for the icebreakers to arrive, then failed to get through the strait and diverted to another route.

The delay runs against the Kremlin's push to market the Northern Sea Route as a dependable passage to Asia. The waterway sits beyond the range of Ukrainian drone strikes and away from potential European naval checks on shadow fleet vessels. Russia moved record volumes of crude oil and liquefied natural gas along the route this year, but ice conditions remain unpredictable. Ksenia Vakhrusheva, who heads the Arctic project at the Lithuania-based environmental group Bellona, said the episode shows that "less ice doesn't mean easier navigation." Melting ice can break apart and jam narrow straits, she said, blocking ships that lack an ice class.

President Vladimir Putin called the route "a reliable and safe path to the world's largest markets." Speaking last month at the launch of the Vostok Oil project on the Taimyr Peninsula, he reported that 37 million tons of cargo moved along parts of the route in 2025 and said the figure would "almost double" by 2030. Kremlin officials set a target of 80 million tons by 2024 in 2019.

Other tallies are smaller. The Norway-funded Center for High North Logistics said Russia had shipped about 2 million tons of mainly crude oil, or roughly 15 million barrels, along the full route to China and other Asian destinations by the end of September, mostly from Murmansk. Reuters, citing traders and shipping data, reported the total near 20 million barrels by mid-October, up 50 percent from 2025 but about 1 percent of Russia's seaborne oil exports. Tomas Alexa, a senior analyst at Ambrey, called it a surge "from a relatively low base." Alexa also said Western sanctions constrain Russia's ability to build and service Arctic vessels, with spare parts and construction materials routed through third parties and repair work once handled by Norwegian, Danish and Dutch firms no longer available.

Other countries are testing the route. South Korea reported on October 22 that its first container ship had used it, calling the passage a shortcut to Europe while noting large ice floes in the Bering and Vilkitsky straits. China ran a scheduled container service to Europe this year for the first time and completed several voyages. Catherine Sendak of the Center for European Policy Analysis said Russia treats much of the Arctic as an internal waterway and that questions on tolls and services for commercial vessels remain unanswered.

Security concerns are rising around the region. EU foreign affairs chief Kaja Kallas said on October 21 while outlining a new EU Arctic strategy that the region "has become a front line of global power competition." NATO launched its Arctic Sentry mission in February, and the United States announced plans last month to expand its military presence in Greenland.

Vakhrusheva said oil degrades slowly in cold water and can spread across ice, which would intensify climate effects. She said Russia publishes no data on route incidents and the area is too remote for independent monitoring.