The maneuvers over international waters in the Pacific last weekend prompted Japanese officials to warn China not to repeat them and risk a collision.

A Chinese fighter jet came within about 150 feet of a Japanese naval reconnaissance plane over the weekend, the Japanese Defense Ministry said Thursday, an action the US ambassador to Tokyo called “dangerous” and “reckless.

Japan's Defense Ministry said Wednesday a Chinese J-15 fighter jet's "abnormal approaches" brought it within 49 yards of Maritime Self-Defense Force P-3C surveillance planes over the past weekend.