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• World Bank says economy will take years to recover • Officials update casualty estimates • Fukushima plant electricity restored The human and financial cost of the tsunami continues to rise, after police estimates showed more than 18,000 people have died in the disaster and the World Bank said it may cost Japan as much as £145bn to repair the damage. The gloom was lifted slightly by news of further progress at the Fukushima Daiichi nuclear power plant, where engineers have connected power cables to three reactors and plan to test the pumps soon. The electricity supply has been restored to another reactor, but the No 3 and No 4 units are still giving cause for concern. Engineers hope to connect those reactors to power supplies on Tuesday, the public broadcaster NHK said. The nuclear emergency is far from over, however. On Monday, it was reported that the No 3 reactor had experienced a surge in pressure that may require workers to vent radioactive steam, a tactic that set off hydrogen gas explosions at the facility last week. The government’s chief spokesman, Yukio Edano, conceded that the buildup of pressure was unsettling. “We knew that even if things went smoothly, there would be twists and turns,” he told reporters. “At the moment, we are not so optimistic that there will be a breakthrough.” That is causing concern because the reactor is the only one of the six that contains plutonium-uranium mixed oxide fuel – or MOX – and would release highly toxic plutonium in the event of a meltdown. The fuel in the other reactors is uranium. The country’s self-defence forces resumed work on Monday to cool down the No 4 and No 3 reactors with seawater. Japan’s nuclear safety agency said it did not believe much water from the two reactors had seeped underground. Radiation leaks from stricken reactors continued to spread through the region’s food supply, though at levels too low to endanger health. The agency acknowledged that workers at the site risked inhaling radioactive dust, but said it had so far found no evidence of that happening. Radiation in excess of government standards was found in canola and chrysanthemum greens grown in the Fukushima area, a day after authorities reported that milk and spinach had been contaminated, as well as tap water in Tokyo, 150 miles away. The health ministry advised 6,000 villagers in Iitate, 19 miles from the power plant, not to drink tap water after tests revealed it contained abnormal, though not harmful, amounts of iodine-131, a radioactive substance. “We think we have arrived at the point where we are very close to getting the situation under control,” the deputy cabinet secretary, Tetsuro Fukuyama, said. Graham Andrew, a senior official of the International Atomic Energy Agency, said: “There have been some positive developments in the last 24 hours but overall the situation remains very serious.” The US health secretary, Steven Chu, told CNN that he believed the worst of the nuclear crisis was over, but added, “I don’t want to make a blanket statement”. Attention is turning to the humanitarian crisis on Japan’s north-east coast and the cost of the cleanup and reconstruction operations. The World Bank said on Monday that it could take Japan five years, and cost between £75bn and £145bn – equivalent to 4% of Japan’s GDP – to overcome the catastrophe, while private insurers face a combined bill of up to $33bn. “Damage to housing and infrastructure has been unprecedented,” the bank said. “Growth should pick up though in subsequent quarters as reconstruction efforts, which could last five years, accelerate.” The bank said damage from the tsunami could also affect trade in the region. The price of some Japanese-made memory chips have risen 20% because of disruption to production lines, while car plants in Asia face shortages of auto parts. “Disruption to production networks, especially in automotive and electronics industries, could continue to pose problems,” the World Bank said. “Japan is a major producer of parts, components and capital goods which supply east Asia’s production chains.” While hundreds of workers battle to render the nuclear plant safe, Japan continues to count its dead. Police estimates show more than about 18,400 died– 10,500 in Miyagi prefecture alone. A further 452,000 people are living in shelters. “It is very distressing as we recover more bodies day after day,” said police spokesman Hitoshi Sugawara. Japan disaster Japan World Bank Global economy Economics Justin McCurry guardian.co.uk