There is fresh cause for concern over rising temperatures around the core of one of the reactors at Japan’s stricken Fukushima nuclear plant. Despite hopes of progress, inspectors now say they need more time to decide if the reactors are stabilised.
Technicians have attached power cables to all six reactors and started a pump at one to cool overheating fuel rods.
There have been several blasts of steam from the reactors since their power and cooling systems were knocked out in the cataclysmic earthquake and tsunami which hit north-east Japan earlier this month.
Global weather systems are thought to have carried radioactive particles across the world. Monitoring stations have now detected tiny amounts in the air as far away as Iceland but experts say they pose absolutely no risk to health.
France’s nuclear safety agency says minuscule concentrations – up to ten thousand times smaller than the fallout from Chernobyl – are set to reach the country by Wednesday.