Japan has cautioned that military developments in North Korea continue to “pose grave and imminent threats” to its security, according to Tokyo’s annual defense report released Tuesday.

The 469-page white paper from the Ministry of Defense (MoD) emphasizes that “North Korea already has the ability to attack Japan with nuclear weapons fitted to ballistic missiles.”

The defense report also states that “Pyongyang has developed more advanced missile-related technologies in recent years, trying to breach missile defense networks by developing ballistic missiles that use solid fuel and fly at lower altitudes than conventional ballistic missiles on irregular trajectories.”

Referring to Pyongyang’s