This 1994 Agreed Framework, as it was known, kept the Yongbyon plutonium enrichment plant closed and under international inspection until 2002. However, economic supports by the agreement and KEDO gave an advantage to North Korea, and North Korea broke off from the treaty and restarted plutonium production. In October 2006, North Korea tested its first nuclear weapon. President Bush warned that he was not pleased by such actions as it is he invited the international community to take a stand. As a result, North Korea, the United States, Russia, China were involved in negotiations and North Korea agreed to close down their nuclear station temporarily.