Sapporo – Deep-water divers arrived Thursday to conduct search operations at the site of a tour boat that sank off Hokkaido in April, aiming to determine the cause of the deadly accident and find those who are still missing.
The divers will conclude the task of searching for the 12 people still unaccounted for as early as Friday, according to the Japan Coast Guard. They will attempt a special technique known as saturation diving, in which they absorb a mix of oxygen and helium so they can adjust their bodies to the level of water pressure at the depth they intend to work at.
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