The Ministry of Economy, Trade and Industry on April 8 announced that a small amount of contaminated water spilled on the floor was observed inside the buildings at three reactors No. 1, 2 and 3 at the Onagawa plant, which has suspended operations since the March 11 mega earthquake.

In all, water spilled or leaked at eight sections of the plant and as much as 3.8 liters of water leaked at one of them, with the highest level of a radioactive isotope--5,410 Bq per kilogram -- found in the spilled water on the floor beside a spent fuel pool in the building housing the No. 1 reactor.

A UN official expressed the view that it was middle level as compared with the Chernobyl disaster in 1986 and the Three Mile Island nuclear crisis in 1979.

Xinhua news of China reported that small amounts of radioactive substances which were predicted as from the Japanese nuclear power plant were detected from all provinces, autonomous regions and metropolitan cities of China excepting Yunnan Province as of Sunday.

The news said radioactive Iodine-131 was detected from vegetables including spinach and lettuce in Jiangsu, Zhejiang, Shandong and Guangdong provinces.

South Korean MBC said that yellow sands occurred in China mixed with radioactive substances were moving to the Korean Peninsula.

It was reported that a small amount of radioactive materials was detected from the air in Israel.

Damage from the quake and tsunami is in steady increase.

The National Police Agency of Japan said that the death toll was 13,116 and that of unaccounted for 14,377 as of 10:00 Monday.

Earthquake measuring 5.0 on the Richter scale occurred in the waters off Tokyo on Sunday. Its epicenter was in the waters of Pacific 26 km far from Tokyo towards the east.