http://the-japan-news.com/news/article/0002559849
The Defense Ministry said Thursday that a Chinese Navy ship was found to have sailed near the Japanese-controlled Senkaku Islands in the East China Sea.
The Dongdiao-class intelligence-gathering ship did not enter Japanese territorial waters around the islands, but repeatedly sailed from east to west and vice versa near Japan’s contiguous zone outside the territorial waters, according to the ministry.
A Chinese ship had never shown such abnormal movements before, it said. The Self-Defense Forces are carefully monitoring the situation, ministry officials said.
The government has informed the Chinese side through diplomatic channels that Tokyo is watching the incident with close attention.