Key facts
- North Korea fired a projectile toward the sea off its east coast on Thursday.
- South Korea's Joint Chiefs of Staff confirmed the launch.
- Japan's Coast Guard said the projectile could be a ballistic missile.
SEOUL, Oct 29 (Reuters) - North Korea fired a projectile toward the sea off its east coast on Thursday, South Korea's Joint Chiefs of Staff said. Japan's Coast Guard said the launched projectile could be a ballistic missile and had already fallen into the sea.