The International Atomic Energy Agency said Friday it will release a report in April on some findings of its mission to review the central government's plan to discharge treated low-level radioactive water into the sea from the crippled Fukushima No. 1 nuclear plant.

The five-day safety review in Japan, which the task force assured would be conducted objectively and on a scientific basis, is considered crucial for the government to obtain an understanding of the plan among the international community and the Japanese public.

Neighboring China and South Korea, as well as the fishery industry in Japan, have expressed worries and opposition to the plan.