By Kantaro Komiya and Nobuhiro Kubo TOKYO (Reuters) -Chinese fighter jets flew unusually close to Japanese military patrol planes over the weekend, Tokyo said, after two Chinese aircraft carriers were spotted operating simultaneously in the Pacific for the first time.

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

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