A mystery fire broke out on Russia’s only nuclear-powered cargo ship in the Arctic – triggering panic onboard. A blaze on the Sevmorput broke out as the vessel was berthed at a high-security dock, with no injuries reported. One local posted: ‘I saw several fire units rushing there, and an ambulance.’ Another message read: ‘Shall we leave now? Is there anything from the authorities? Why no update? It would be too late to run given what kind of ship this is.’