The sinking of the Russian cargo ship Ursa Major near Spain has triggered new questions over whether the vessel was carrying sensitive nuclear reactor components possibly linked to North Korea.
The ship sank in the Mediterranean Sea on Monday, December 23, 2024, after explosions struck the vessel near its engine room. Fourteen crew members were rescued, while two died or were reported missing, according to official accounts.
Why Spain Is Investigating Ursa Major
Spanish investigators are examining claims that the Russian vessel may have been transporting components for two nuclear reactors similar to those used in submarines. The ship’s captain reportedly told authorities he could not confirm whether nuclear fuel was on board.
The Ursa Major, also known as Sparta 3, had left St. Petersburg with declared cargo including heavy cranes, large metal covers and empty containers. Its listed destination was Vladivostok, but investigators questioned why sensitive equipment would travel by sea around Europe instead of through Russia’s rail network.
Possible North Korea Link Adds Concern
A source familiar with the inquiry reportedly said the vessel could have later been redirected toward Rason, a North Korean port. That detail has intensified scrutiny of growing Russia-North Korea military cooperation.
The ship was also reportedly escorted by Russian military vessels before entering Spanish waters. Portuguese naval forces monitored its route along Europe’s coastline.
Explosions, Wreck Site And Radioactive Concerns
Investigators said the Ursa Major slowed unexpectedly on Sunday, December 22, 2024. About 24 hours later, three explosions hit the starboard side near the engine room.
The ship’s owner later called the sinking a targeted attack, though no responsibility has been confirmed. The wreck remains about 2,500 meters underwater, making recovery difficult.
The presence of the Russian research vessel Yantar near the wreck and reported U.S. monitoring flights have added to suspicion, but officials have not publicly confirmed radioactive cargo.
