![Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)](http://www.ecns.cn/hd/2018/07/31/1408a72e3c56424189d98ae0ecb0bab1.jpg)
Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)
![Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)](http://www.ecns.cn/hd/2018/07/31/a174119007714106bd2adaa7b4d9742c.jpg)
Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)
![Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)](http://www.ecns.cn/hd/2018/07/31/04fa53e3fcb146e3a5093cfa1a1da33e.jpg)
Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)
![Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)](http://www.ecns.cn/hd/2018/07/31/f455129627404e9fa5582f940e5b39ad.jpg)
Armed police officers take part in a drill that simulated a hostage-taking crisis on a high-speed train in Hefei City, East China’s Anhui Province, July 30, 2018. The drill aimed to enhance preparedness against transportation emergencies. (Photo/VCG)