Nuclear Weapon | featured news

Iran's nuclear chief says his country will allow the U.N. nuclear agency to inspect its newly revealed, still unfinished uranium ...

U.S. President Barack Obama accused Iran on Friday of building a secret nuclear fuel plant for several years and demanded that Tehran comply with international rules on nuclear nonproliferation.

The U.N. Security Council unanimously approved a U.S.-sponsored measure to lay the legal framework for action against nations that use civilian nuclear technology for military purposes.

U.S. President Barack Obama said he and Russian President Dmitry Medvedev agreed on Wednesday that serious additional sanctions must be considered if Iran does not respond to proposals to end a nuclear standoff.

Obama says opposition to the U.S. has served as an 'excuse for our collective inaction' on matters such as nuclear disarmament, climate change and Middle East peace.

As world leaders began gathering for the General Assembly, the puzzle of how to confront Iran and North Korea continued to stymie diplomats.

Iran's output of enriched uranium is stagnating, diplomats said Tuesday, suggesting the country may be running short the material needed for producing nuclear fuel or the fissile core of warheads.

North Korea followed recent conciliatory gestures toward the U.S. and South Korea with a return to threats Sunday, warning them of "merciless retaliation" over sanctions imposed on its government, and nuclear attacks in response to any atomic provocation.

Indian authorities have detained a North Korean vessel and are searching it for radioactive material, the first time a ship has been seized and boarded under sanctions adopted by the United Nations Security Council in June.

India's launch of a nuclear-powered submarine is a threat to regional peace and security, Pakistan's foreign ministry says.