Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)

Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)

Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)

Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)

Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)

Special police in Gannan Tibetan Autonomous Prefecture, Northwest China’s Gansu Province undergo training despite temperatures that dropped to minus 23 degrees. The 18 training programs include response to a hostage crisis on a high building and rapid maneuvers in mountainous regions. (Photo: China News Service/Zhang Ying)