There have been reports from South Korean news agencies that North Korea is preparing to test launch a long-range missile.

South Korean government officials have reported that an advanced long-range missile, capable of reaching the US state of Alaska, has been moved into position on the North Korean west coast

Pyongyang has banned ships from its waters in the area of the rocket launch pad.

Pyongyang said it tested a nuclear weapon underground on May 25th, then launched several short-range missiles.