Minister of Land, Infrastructure, Transport and Tourism, goes to Ishigaki Maritime Safety Agency and inspects the patrol ships damaged in the incident. September 20: China detains four Japanese employees of Fujita Corporation for allegedly filming military targets. September 22: China's premier Wen Jiabao delivered a strong-worded address: "I strongly urge Japan to release Zhan Qixiong immediately and unconditionally" when he attended the general assembly of the United Nations in New York. He said Japan had turned a deaf ear to China's repeated serious requests. "If Japan persists willfully and arbitrarily, China will take further actions. Japan shall take full responsibilities for all dire consequences incurred." This is the highest level of protests made by Chinese officials after the collision incident. September 24: Japan releases Qixiong, stating that keeping the captain in custody would not be appropriate and was having a considerable impact on Sino-Japan relations. September 25: China demands an apology and compensation from Japan for holding the Chinese boat captain. Japan rejects this demand. September 27: Japan said it would counter-claim against China for damage to its patrol boats in the collision. October 6: Joint US/Japan drill is planned on defending Okinawa in December but Japanese Prime Minister Kan Naoto told the parliament that the joint military exercise does not have the islands specifically in mind. October 9: All of the Fujita employees were released by China. October 19: In the regular press conference held by the Minister of Foreign Affairs of China, a reporter asked: According to Japanese news sources, the Foreign Minister of Japan Seiji Maehara claimed that China's reaction to the collision is "hysterical". How does China respond to Mr. Seiji's comment? The spokesman Ma Zhaoxu said: "We are deeply astonished that such a comment is made by a foreign minister of some nation." November 4: Leaked video footage of the collision appears on YouTube. November 9: Supreme Public Prosecutor's Office of Japan launches an investigation against Google over the video leak. November 15: Japanese police and prosecutors announced that they would not arrest anyone for the YouTube leak. Response in Japan Government The Japanese government claims that there is no territorial dispute over the Senkaku islands. On September 14, 2010, then-Minister of Land, Infrastructure, Transport and Tourism Seiji Maehara repeatedly asserted this standpoint. The government decided to set aside 53.3 billion yen for the following measures to reduce dependence on Chinese mineral resources: Development of