According to El Espanol, an explosion occurred in the engine compartment of the "Ursa Major" vessel on December 23. The ship sank in the international waters between Spain and Algeria. Fourteen crew members were rescued and brought to the port of Cartagena, while two people went missing. This was reported by zamon.uz here.
The ship had left the port of Saint Petersburg on December 11 and was due to arrive in Vladivostok on January 22.
As written by Mediazona, this ship had been used for many years to transport cargo for Russia's military group in Syria.