Tags: Asia-Pacific

U.S. Secretary of Defense Ash Carter will visit a U.S. aircraft carrier transiting the South China Sea on Thursday, a move sure to raise the ire of China as tensions between Washington and Beijing simmer over the disputed waterway.

The Federal Communications Commission and the Justice Department are investigating a California firm whose U.S. radio broadcasts are backed by a subsidiary of the Chinese government, officials said.

China reserves the right to a "necessary reaction" after Japan issued a defense review that called on Beijing to stop building oil and gas exploration platforms close to disputed waters in the East China Sea, the Defense Ministry has said.