- Obama: The U.S. is taking North Korea's "provocative" tests "very seriously"
- A North Korean official tells CNN tests were "fair self-defensive measures" in the face of U.S. "nuclear threat and blackmail"
- Missile was fired Saturday evening, authorities say
- North Korea has claimed in the past to possess nuclear weapons
(CNN)North Korea's firing of a submarine-launched ballistic missile over the weekend sparked sharp condemnation and concern from officials around the globe.