Nuclear

Around 100 tonnes of highly radioactive water leaks from a tank in Japan’s Fukushima nuclear plant, in the worst incident of its kind since August 2013.

“Elevated levels of radioactivity” have been detected at the Sellafield nuclear plant, and the site is currently being operated at “reduced manning levels”.

Mr Cameron has again promised a referendum on Britain’s EU membership after the next election. But he could not hide his disappointment that a bill to enshrine it in law fell in the Lords today.

William Hague delivers a statement to the House of Commons following the historic nuclear deal agreed with Iran over the weekend.

Foreign Secretary William Hague says a deal struck with Iran over its nuclear programme has made the world a safer place, and it is now time to test Tehran’s “readiness to act in good faith”.

It was seen as the riskiest operation at Japan’s stricken Fukushima Daiichi nuclear plant since the March 2011 tsunami – but the plant’s operator says the first fuel removals have begun safely.

As Tepco opens up to the world about a dangerous operation coming up at the stricken Fukushima Dai-ichi nuclear plant, we speak to a former worker who says his legs shook as he did his work.

Statesmen and diplomats are meeting in Geneva over Iran’s long-running and controversial nuclear weapons programme. As a deal nears, the French have warned of stumbling blocks over a possible pact.

British architect Garry Thomas visited Iwaki, near the damaged Fukushima Dai-ichi nuclear plant, recently. He found a place barely reconstructed, and residents losing hope.

The UK will build its first nuclear power station in 25 years, as it strikes a deal with French EDF and two Chinese backers.

Chinese-designed nuclear plants could be built in the UK under a deal announced by George Osborne. But is the Chinese system for regulating its nuclear industry really rigorous and incorruptible?