China isn’t contributing to the peace and stability of the Asia-Pacific region, Japanese Defense Minister Shinjiro Koizumi and US Defense Secretary Pete Hegseth concurred on Friday following accusations from Tokyo that at least one Chinese fighter jet used its weapons-targeting radar on Japanese fighters.

On a phone call, the two defense chiefs discussed the Dec. 6 radar incident and the “increasingly severe security situation” in the region, according to a statement from Japan’s Defense Ministry.