North Korea Threatens to Wipe Out U.S. 'Once and For All'

U.S. and regional authorities were watching closely for signs that North Korea might fire short- or mid-range missiles during the June 25 to July 10 timeframe cited in a no-sail ban for military drills sent to Japan's Coast Guard.

North Korea had warned previously it would fire a long-range missile as a response to U.N. Security Council condemnation of an April rocket launch seen as a cover for its ballistic missile technology.

An underground nuclear test last month drew more Security Council action: a resolution seeking to clamp down on North Korea's trading of banned arms and weapons-related material by requiring U.N. member states to request inspections of ships carrying suspected cargo.