Fukushima: Japan insists release of 1.3m tonnes of ‘treated’ water is safe

Neighbouring countries and local fishers express concern as 12th anniversary of nuclear disaster looms

Almost 12 years have passed since the strongest earthquake in Japan's recorded history resulted in a tsunami that killed more than 18,000 people along its north-east coast.

As the country prepares to mark the 11 March anniversary, one of the disaster's most troubling legacies is about to come into full view with the release of more than 1m tonnes of treated" water from the destroyed Fukushima Daiichi nuclear power plant.