Japan has increased vigilance in the area around the Nansei island chain while keeping a close watch on the tense situation in Taiwan following U.S. House of Representatives Speaker Nancy Pelosi's visit to the island.
On Wednesday morning, the Japanese government conveyed concerns to China through diplomatic channels as part of Japan's exclusive economic zone (EEZ) had been included in an area where China said it would conduct live-fire exercises from Thursday.
"We are concerned. We strongly urge a peaceful resolution of the cross-strait issue," Chief Cabinet Secretary Hirokazu Matsuno said at a press conference Wednesday.