Japan closely watching situation in South Korea: media

TOKYO, Dec. 4 (Xinhua) -- Japanese Prime Minister Shigeru Ishiba said Wednesday that Japan was carefully watching the situation in South Korea with "particular and grave" concerns, according to Kyodo News.

"We have been monitoring (developments) since the overnight declaration of martial law with particular and grave concerns," Ishiba told reporters, adding that he is not in a position to comment on South Korea'