Speaking to reporters at the United Nations in New York, Pak called the pending Security Council resolution on North Korea "useless" and asked that the Security Council congratulate instead North Korea on its achievement.
The Security Council met on October 9 to discuss possible action to take after the North Korean test.
The United States circulated a draft resolution that would strengthen already existing weapons-related sanctions on North Korea, including inspections of cargo going in and leaving the country.
The Security Council earlier condemned Pyongyang's claim to have tested a nuclear weapon underground.
World leaders condemned news of the nuclear test, including U.S. President George W. Bush, who said North Korea's "provocative act" threatened peace and stability.
"Once again, North Korea has defied the will of the international community, and the international community will respond," Bush said. "This was confirmed this morning in conversations I had with leaders of China and South Korea, Russia, and Japan."
The United States wants any sanctions brought under Chapter 7 of the UN Charter, which means they would be mandatory and ultimately enforceable by military means.
(with Reuters, AP, AFP)