South Korea says that it will release on Friday its independent report on Japan's plan to discharge treated and diluted water from the crippled Fukushima Daiichi nuclear power plant into the Pacific Ocean.

South Korean government officials told a news conference on Thursday that the country has conducted its own assessment, based on data released by Japan and analysis by South Korean experts who visited the plant in May.

The officials said the report includes comprehensive conclusions of the assessment, along with suggestions for Japan. The officials added that the government will also make clear its position on Japan's discharge plan.

Water used to cool molten nuclear fuel at the Fukushima Daiichi plant mixes with rain and groundwater. The accumulated water is treated to remove most radioactive substances, but still contains tritium. The Japanese government plans to dilute the water to reduce the tritium level to about one-seventh of the World Health Organization's safety standard for drinking water before discharging it.

The South Korean government has said it respects the results of the International Atomic Energy Agency's review of Japan's plan. The agency on Tuesday issued a report confirming that Japan's plan is consistent with international safety standards.

IAEA Director General Rafael Grossi is due to arrive in South Korea on Friday to explain the agency's assessment of the Japanese plan.

The South Korean government is hoping that the release of its own report, along with the IAEA's assessment, will help to dispel public concerns about the discharge of the water.