With the hours ticking down, the international search hoping to find those aboard the missing submersible that was diving to the Titanic wreckage is slowly reaching its full force.
A fleet including commercial, coastguard and navy vessels has assembled to conduct a search operation now covering an area more than twice the size of the US state of Connecticut.
• Follow live: search in crucial phase as oxygen levels run low
While several robotic underwater vehicles are already scouring the site, trying to pinpoint the “banging” sounds that have been heard, rescuers expressed hopes that the arrival of more “state-of-the-art” equipment could lead to a breakthrough.
Despite concerns about the dwindling oxygen supply on Titan, the 2.8m-long vessel at the centre of the search, the
