Officials in Toyko say that radiation levels in the city's tap water make the water unfit for babies to drink.

东京官员称，东京城内自来水的辐射水平已使其不适宜婴儿饮用。

Iodine¹（碘） levels in some areas are twice the recommended safe level.

The authorities have also imposed new restrictions² on food from areas affected³ by leaks from the Fukushima nuclear plant.

The Food and Drug Administration (FDA) in the United States also announced restrictions on certain food imports.

Levels of radioactive iodine-131 in some areas of Tokyo is 210 becquerels（贝可） per litre; the safe level for infants in 100 becquerels per litre.

People have been warned not to give the water to infants, although there is no immediate⁴ health to adults.

Workers at the Fukushima reactor⁵ 2 have halted work as radiation levels spiked⁶; the UN atomic agency has said radiation is still leaking from the plant.

The confirmed death toll⁷ from the earthquake and tsunami⁸ is now 9,079, with 12,645 missing.

But the Japanese government now estimates that more than 21,000 people died.

The cost of damage caused by the disaster is estimated at about 16-25 trillion yen⁹ ($197bn-$308bn).

The Japanese Prime Minister, Naoto Kan, ordered the governors of Fukushima and neighbouring Ibaraki to halt shipments of a range of agriculture goods.

This included green leaf vegetables, broccoli¹⁰（花椰菜） , parsley（欧芹） and untreated milk after they showed radiation levels which were higher than normal.

The Japanese Cabinet Secretary Yukio Edano told a news conference that importers of Japanese foods should take a "logical stance".

A statement from the FDA said that all milk and milk products and fresh fruits and vegetables from four Japanese prefectures - Fukushima, Ibaraki, Tochigi and Gunma - will be stopped from entering the United States.

Food and fish retailers¹¹ are increasingly worried about the effect the crisis will have on their livelihoods¹².