 On October 9, 2006, North Korea demonstrated its nuclear capabilities with its first underground nuclear test, detonating a plutonium based device with an estimated yield of 0.2–1 kilotons.The test was conducted at Punggye-ri Nuclear Test Site in North Hamgyong Province, and U.S. intelligence officials later announced that analysis of radioactive debris in air samples collected a few days after the test confirmed that the blast had taken place.The UN Security Council condemned the test and announced the imposition of Resolution 1718.