Secretive state says resumption of programme has been delayed due to planned military drills in the South
Changes to international law will expose them to claims for damages
New Year's Day message included call for improved ties with Seoul but also warning of possible 'nuclear catastrophe'
For 10 years shipments of uranium have been quietly changing hands
Radiation levels could be so intense that criminals only have days to live
The head of the consortium running the decontamination of Sellafield has apologised for a string of management failures that has seen the cost of cleaning up the Cumbria site soar beyond £70bn.
The four-mile pipe was discharging radioactive components from Harwell’s Atomic Energy Research Establishment into the Thames
Mexican police have found a container that held radioactive material and which was stolen by thieves as it was being transported near Mexico City, the country's national nuclear safety commission CNSNS has said.
Both sides declare victory as 4.30am agreement in Geneva crowns months of intense negotiations
An internationally isolated Benjamin Netanyahu termed the world powers’ agreement with Iran a “historic mistake” that advanced Tehran towards nuclear weapons capability.
Doctors are searching for an alternative to key element used in diagnosis
Negotiations between six world powers and Iran aimed at preventing Tehran from obtaining a nuclear weapon reached a critical stage tonight, after foreign ministers gathered in Geneva in search of a breakthrough on an interim deal.
After several false starts, Western negotiators are cautiously hopeful of a breakthrough deal with Iran this week to curb Tehran’s nuclear programme in return for sanctions relief.
When elected, Mr Rouhani promised he would seek to lift the unpopular international economic sanctions used to punish Tehran for failing to curtail its nuclear programme
US Secretary of State said major powers, including France, were united in an offer but Iran 'couldn't take it'
Optimism about potential breakthrough in decade-long dispute raised