• North Korea launched multiple short-range ballistic missiles toward the sea.
• The launch came after a trilateral military drill by the US, South Korea, and Japan.
• The missiles flew about 250 kilometers each in a direction toward North Korea's eastern waters.
• The US Pacific Command said the launch didn't pose an immediate threat.

North Korea's actions may indicate a heightened state of tension in the region, which could have implications for regional security and stability. The launch suggests that North Korea is continuing to develop its military capabilities, which could pose a threat to its neighbors and the US.