The head of the U.N. Food and Agriculture Organization said Wednesday the safety of food produced in Fukushima is "assured," despite the import bans still imposed by some countries in the wake of the 2011 nuclear disaster.

"At the moment, we don't see any reason to raise concern about the safety of food," FAO Director General Jose Graziano da Silva told a tasting event in Tokyo where he ate sweets made from pears and apples grown in the northeastern prefecture.

"Six years after the accident, we continue to monitor all the foods from the area affected. ... We have to say that the Japanese government has been supportive and very transparent despite the difficult situation," said the director general, who is in Japan from Tuesday to Friday.