The United States slammed an offer by North Korea to suspend future nuclear tests temporarily if Washington cancels military drills with the South as an "implicit threat."
The UN has stressed on the importance of a global ban on nuclear tests, while calling for international efforts to achieve the goal of a safer and more secure world.
Iran has constructed a rocket-launching site that could be used for testing ballistic missiles, a report from a military intelligence publication said on Thursday.
South Korea called the North`s ultimatum "regrettable" and vowed a tough response to any military provocation.
In the wake of North Korea`s nuclear test, the Australian government has called off the scheduled visit of diplomats from Pyongyang who were due to arrive in Canberra to set up an embassy.
A South Korean government source has said that analysis of recent satellite images has shown new activity on the southern edge of the Punggye-ri nuclear test site.
The comment piece by Li Hongmei asked China, other countries to be vigilant.
Radioactive fallout from Operation Castle, a series of thermonuclear tests the United States conducted at Bikini Atoll in the South Pacific in 1954, reached the mainland United States and Latin America, Japanese researchers said.
Iran`s atomic energy chief claimed
on Thursday that the UN nuclear watchdog misunderstood the nature of
the experiments at a Tehran laboratory mentioned in the
agency`s latest report.
Covert nuclear tests may soon become a thing of the past, thanks to pure samples of a telltale gas that could help nuke sniffers.
The US had made several attempts to restrict Pakistan from conducting nuclear tests in 1998.
In a startling revelation, a senior DRDO scientist associated with Pokhran II nuclear tests has claimed that the tests were only partially successful.
Day in Pics: 29th January
Showbiz World - January 29, 2015
President Barack Obama's speech at Siri Fort auditorium