On 22 June, Rear Admiral Mauger of the US coastguard service confirmed that five parts of the Titan submersible vessel had been found. The debris indicated that the Titan had suffered a ‘catastrophic implosion’. It had gone missing on 18 June after setting off to explore the wreck of the Titanic. Despite great rescue efforts, hope had been fading of finding it and its five occupants, who had each paid $250,000 for the trip. Earlier, the vessel operator OceanGate said: ‘Our hearts are with these five souls and every member of their families during this tragic time.’ However, some commentators queried the wisdom of using an unlicensed vessel for such a dangerous trip.