Power cables have been restored at Japan's Fukushima Daiichi nuclear plant, which was seriously damaged in the 11 March earthquake and tsunami. However, officials say further testing is needed before the electricity can be switched on. For now, seawater is being sprayed onto reactor No 3 to cool it. Work was interrupted earlier for the second time in 24 hours after steam and smoke was emitted from two reactors. Radiation levels spiked briefly, and engineers were told to leave the plant.The work to restore power to the reactors restarted shortly after dawn today. By evening, cables had been linked to all six reactors for the first time. But the power supply will not be turned on until the equipment at the site has been checked first; only then will an attempt be made to restart the cooling systems and monitoring equipment.Police say the confirmed death toll from the earthquake and tsunami is now 9,079, with 12,645 missing. More than 350,000 people are still living in evacuation centres or temporary housing in northern and eastern Japan, many of them short of food, water and fuel. Reports say major roads to the worst-affected areas were reopened to traffic today and bullet trains began running too.