Nuclear power

Alex Salmond has demanded an apology from David Cameron for failing to tell Scottish ministers about a radiation problem at a nuclear submarine test reactor.

The First Minister said the UK Government had "disrespected" Holyrood and the people of Scotland by not alerting the Scottish Government to the problem for almost two years.

More: MPs urge parliamentary inquiry into radiation leak

Opposition politicians have called for a parliamentary inquiry into the handling of a radiation leak at a nuclear test reactor.

Public confidence has been damaged by the incident at the Vulcan Naval Reactor Test Establishment in Dounreay, Caithness, according to shadow defence secretary Vernon Coaker and shadow Scottish secretary Margaret Curran.

UK Defence Secretary Philip Hammond revealed details of a small internal leak of radiation on Thursday as he announced that the nuclear submarine HMS Vanguard is to have its reactor refuelled at a cost of £120 million.

Mr Coaker and Ms Curran said there were "significant questions" about the handling of the incident, particularly the two-year delay in making it public.

China's leadership said the country may invest in the controversial HS2 rail project and a new generation of nuclear power stations in the UK.

Speaking after talks with David Cameron on the first day of the Prime Minister's visit to China, Premier Li Keqiang said the two sides had agreed to "push for breakthroughs" on nuclear power and high-speed rail.

Mr Li said, "The Chinese side is willing to not only participate but also purchase equities and stocks in UK nuclear power projects, and the UK side is open to this idea."

Speaking ahead of his visit last week, Mr Cameron said, "In terms of HS2, I very much welcome Chinese investment into British infrastructure".

President Barack Obama has shrugged off criticism of the deal to limit Iran's nuclear development - saying it's good for American security.

The deal has been criticised by America's Middle East allies Israel and Saudi Arabia.

ITV News Diplomatic Correspondent John Ray reports:

Foreign Secretary William Hague said the nuclear deal with Iran does not mean the UK embassy in Tehran will reopen.

"We have to be clear with Iran that an embassy, if we reopen it, would be able to operate properly with all the normal functions. We will take this in a step by step way," he said.

Foreign Secretary William Hague has discouraged Israel from taking any steps to undermine the interim nuclear deal with Iran.

"We would discourage anybody in the world, including Israel, from taking any steps that would undermine this agreement and we will make that very clear to all concerned," Hague told parliament.

Israel's Prime Minister Benjamin Netanyahu has called the nuclear deal with Iran "an historic mistake" and said it has "made the world a much more dangerous place".

Foreign Secretary William Hague says core sanctions on Iran will remain in place. These include sanctions against the Iranian Central Bank, US trade restrictions, all UN Security Council sanctions and restricted access to its foreign assets.

Most importantly, the EU ban on Iran's crude oil will also remain in place. For Iran, this means loss of sales worth about $4 billion (£2.5 billion) per month.