A U.N. agency says Iran is no longer in violation of its nuclear agreement with six world powers because it has reduced its store of heavy water.

A U.S. website said Friday it sees further signs from satellite imagery that North Korea is looking to produce more plutonium for nuclear weapons.

North Korea has expanded a uranium enrichment facility and restarted a plutonium reactor that could start recovering spent fuel in weeks or months, the U.S. intelligence chief said Tuesday in delivering the annual assessment by intelligence agencies of the top dangers facing the country.