In Japan, Engineers have restored power to three reactors at the crippled Fukushima Daiichi nuclear plant and hope to test water pumps soon. However the cooling systems are not yet operating, and the UN nuclear watchdog, the IAEA, says the situation remains very serious.Workers have been battling to cool reactors and spent fuel ponds to bring the radiation-leaking plant under control. A plant spokesman says some workers were evacuated on Monday from the complex after smoke or vapour was seen rising from the No 3 reactor. Villagers living near the plant have been told not to drink tap water due to higher levels of radioactive iodine. A senior IAEA official, Graham Andrew said there have been some positive developments in the last 24 hours but overall the situation remains very serious. Deputy Cabinet Secretary Tetsuro Fukuyama said they consider that now they have come to a situation where they are very close to getting the situation under control. The official death toll from the 11 March quake and tsunami has now risen to 8,649. Nearly 13,000 people are still missing.