North Korea may test-fire a medium-range ballistic missile with a range of 3,000km in the next few months.

The Sankei Shimbun, a Japanese daily, reported that North Korea was collaborating with Iran for the test fire of the Musudan missile.

The US Navy has deployed a ballistic missile tracking ship, the USS Observation Island, at Japan’s Sasebo Port as part of the preparation for the test-firing.