Heavy-lift ship that that sank in the Mediterranean
MV "Ursa Major" was a heavy-lift ship that operated from 2009 to 2024. 
She was built in Germany in 2009 as Scan Britania. She was renamed Hyundai Britania in 2010; EIT Palmina in 2011; Sparta III in 2017; and "Ursa Major" in 2021. 
In 2024 she sank in the western Mediterranean, with the loss of two of her 16 crew. At the time of the sinking, the ship was owned by the Russian state corporation Oboronlogistika.
Building and description.
The ship was ordered on 15 September 2008 from Peene-Werft in Wolgast, Germany. Rolandwerft of Berne, Germany built and delivered her forward and cargo sections. The ship built as yard number 251. She was laid down on 28 January, launched on 28 October, and delivered on 14 December 2009. Her length overall was , her beam was , and her draught was . Two heavy cranes were mounted on her port side. Her superstructure and bridge were on her forecastle, leaving her deck as clear as possible for bulky cargo, which then could not obstruct the forward view from her bridge.
Her main engine was a single 16-cylinder MAN B&amp;W 16V32/40 medium-speed diesel engine manufactured by STX Corporation under license in South Korea. It drove a single controllable pitch propeller, giving her a service speed of and a maximum speed of .
Names and registries.
The ship's IMO number was 9538892, and her MMSI number was 273396130. When completed as "Scan Britania" in December 2009, she was registered in the Isle of Man. In February 2010 she was renamed "Hyundai Britania", and in 2011 her registration was transferred to Germany. In August 2011, the ship was renamed "EIT Palmina", and her registration was transferred to Antigua and Barbuda. In February 2017 she was renamed "Sparta III", and her registration was transferred to Belize. In April 2017 her registration was transferred to Russia, and in October 2021 she was renamed "Ursa Major". By 2019 the Russian military logistics company Oboronlogistika was managing her, and by 2024 she was registered in Novorossiysk. Oboronlogistika said the ship was its flagship. Her direct owner and operator was a company called SK-Yug.
Russian career.
In September 2019, as "Sparta III", the ship brought a cargo from China to Europe via the Northern Sea Route. This was 27 percent shorter than sailing around Asia to the south; which made her voyage ten days shorter. It avoided the Suez Canal with its attendant toll, and the risk of piracy in parts of the Indian Ocean. Oboronlogistika claimed that the voyage saved € 300,000. At the time, the Northern Sea Route was usable from August to October.
In late 2020, "Sparta III" became ice-bound near Mys Sopochnaya Karga in the Yenisey river estuary in the Russian Arctic. The 1979–built icebreaking anchor handling tug supply vessel "Kigoriak", which had been chartered to escort her, was unable to free her, so Oboronlogistika asked FSUE Atomflot to divert one of its nuclear-powered icebreakers operating in the Gulf of Ob to free both ships. Rosatom deployed the nuclear-powered "Vaygach" to break a channel and the diesel-electric "Admiral Makarov" to tow "Sparta III" to the ice edge where the ship, having damaged its steering gear, was handed over to the ice-strengthened salvage ship "Spasatel Karev", which towed it to Arkhangelsk.
Oboronlogistika is a Russian state corporation handling marine military logistics. For years, the ship carried matériel on Russia's "Syrian Express" supply route to Tartus naval base in Syria. Another ship named "Sparta", "Sparta IV", had also previously involved in the Syrian Express. Some of that materiél was destined for Khmeimim Air Base. In 2022, after the Russian invasion of Ukraine, the US Government sanctioned the ship.
Loss.
On 11 December 2024, "Ursa Major" left St Petersburg for Vladivostok. As it was winter, she was to sail via the Suez Canal. Her cargo included two 45-ton hatches for a Project 10510 icebreaker that was under construction, and two Liebherr 420 mobile cranes to be installed at the Port of Vladivostok. "Ursa Major" was travelling in the company of "Sparta IV". Some reports claimed that "Ursa Major" was headed for Tartus. However, this contrasts with the fact that she was carrying vital cargo destined for Vladivostok.
By 22 December, when the ship was in international waters between Spain and Algeria, satellite tracking showed that her speed suddenly dropped to . According to TASS, there was an explosion in her engine room, reported to happen on 12:30 on 23 December, she was drifting south at 1 knot. Photographs published online showed her down by her stern, with her bow and forward superstructure raised, and listing to starboard.
According to a notice to mariners by Salvamento Marítimo, "Ursa Major" sank on 23 December at 23:22 UTC at position , between Águilas in Spain and Oran in Algeria. Spanish fishing vessels; the ; and the rescue ship "Clara Campoamor" rescued 14 members of her crew, and landed them at Cartagena. Two other crew members were reported to be missing.
On 25 December, Russian state news agency RIA Novosti reported that "Ursa Major" was victim of "an act of terrorism", and described the sinking as being the result of three explosions, citing the vessel's owner Oboronlogistika. During 15-17 January 2025, the diving ship Yantar was operating at the position, and then leaving the Mediterranean through the Gibraltar Strait.
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