The mystery surrounding North Korean 'ghost ships' which have been washing up in Japan full of dead bodies may now have been finally solved.
For years, Japan's north coast had been the site of the disturbing phenomenon, with rickety fishing vessels arriving more than 1,000km from where they set out.
In 2017 the numbers were unprecedented with more than 100 damaged boats landing, containing a total of 35 bodies, compared to 66 vessels the year before.
Some have speculated the weather that year was to blame and that North Korea's aging fishing population had something to do with the problem.
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