Japan and China are blaming each other after Tokyo raised concern that a Chinese fighter jet came dangerously close to Japanese reconnaissance planes.

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.

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