Bush is pissed at North Korea

President Bush on Monday said North Korea's claim that it has tested a nuclear weapon is a threat to international peace and said the world "will respond."

"The transfer of nuclear weapons to states or non-state entities would be considered a grave threat to the United States," Bush said. "And we would hold North Korea fully accountable to the consequences of such action."

Bush said the U.S. was still trying to verify North Korea's claims that it had tested a nuclear weapon on Monday.

He said he'd spoken with the leaders of South Korea, Russia, China and Japan.

"All of us agreed that the proclaimed actions taken by North Korea are unacceptable and deserve an immediate response by the United Nations Security Council," Bush said.

At an emergency meeting of the U.N. Security Council on Monday, the United States, China, Japan, South Korea, Russia and the European Union quickly condemned North Korea's claim.

Senior U.S. officials said the United States will push for a Security Council resolution under Chapter 7 of the organization's charter which deals with "threats to the peace" and "acts of aggression."