The short-range ballistic missile (SRBM) that North Korea tested over the weekend flew more than a hundred miles farther than originally measured, Japan’s defense ministry announced Monday, changing its initial assessment while noting the projectile’s “irregular trajectory.”

Experts told NK News that Tokyo’s statement likely refers to an in-flight maneuver that resulted in the missile not following a typical parabolic path, making it more difficult to track and potentially contributing to the latest discrepancy between South Korean and Japanese assessments.