Japan will seek to reassure other countries about the safety of food produced in areas affected by the 2011 Fukushima nuclear crisis, officials said Friday, after the World Trade Organization supported South Korea's import ban on some Japanese seafood.

Fishermen in Tohoku, the region hit hardest by the devastating earthquake and subsequent tsunami that triggered the triple core meltdown at the Fukushima No. 1 nuclear power plant, expressed disappointment with the WTO's decision, saying their catches clear strict safety checks before shipment.

The WTO "maintained factual findings that Japanese food products are scientifically safe and satisfy safety standards in South Korea," Chief Cabinet Secretary Yoshihide Suga said at a press briefing.