As international tensions rise over a planned North Korean rocket launch, the U.N. nuclear agency is taking a wait-and-see attitude on an offer from the North to allow agency experts back into the country, according to a letter shared with the Associated Press.
The head of the U.N. nuclear agency expressed growing concern Monday about investigating an Iranian site suspected of links to nuclear weapons development, saying there are indications of new activity there.
The head of the U.N. nuclear agency said his inspectors could be back in North Korea within a few weeks, once the North and his agency's board approve such a mission.

The head of the U.N. nuclear agency on Monday announced plans to publish new information backing up his belief that Iran may be working on a nuclear warhead — developments that leave his organization "increasingly concerned."
Government forces have killed 30 Islamic militants in Yemen's troubled southern province of Abyan, the defense ministry said Tuesday, in what appears to be an escalation of a military campaign to retake areas captured by extremists.
Traces of radioactive material from the endangered Japanese nuclear plant are being detected from coast to coast in the United States and in Iceland, but amounts continue to be far below levels that would cause health problems.

The Japanese government acknowledged Friday that it was overwhelmed by the scale of last week's twin natural disasters, slowing the response to the nuclear crisis that was triggered by the earthquake and tsunami that left at least 10,000 people dead.

In the first television address by a Japanese monarch, Emperor Akihito on Wednesday tried to calm the nerves of a nation shaken by a massive earthquake and tsunami, with officials gripped in a seesaw fight against nuclear radiation at a shattered power plant.

A bipartisan group of senators and House members this week urged the head of the U.N.'s nuclear watchdog agency to demand intrusive inspections of Syria's suspected nuclear program.