Tons of mostly sardines and mackerel were discovered on more than a kilometre of sand stretching across the shores of Hakodate, Japan.
Thousands of dead fish have washed up on a beach in northern Japan.
Tons of mostly sardines and mackerel were discovered on more than a kilometre of sand stretching across the shores of Hakodate, Japan.
The cause of the mass dying is still uncertain.
Locals were advised against eating the fish.
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