(CNN) – The United States will enforce the latest U.N. Security Council resolution on North Korea, which calls for stopping arms shipments if necessary, Vice President Joe Biden said Sunday.
"We're going to enforce the U.N. resolution," Biden said on NBC's "Meet the Press" program. "This is a matter of us now keeping the pressure on."
The resolution, passed by a 15-0 vote, expands and tightens sanctions on North Korea after the nation's recent nuclear test, firing of test rockets and threats to U.S. and South Korean ships near its territorial waters.
North Korea has said that any interdiction of its ships would be an act of war, the latest threat from a regime known for inflammatory rhetoric.
Biden said the resolution represented joint action by the Security Council members "like never before," noting that longtime North Korean ally China signed on. He called possible North Korean use or spread of nuclear weapons "a serious threat to the world, and particularly in East Asia."