Passengers watch the security drill in front of the square in Beijing Railway Station on December 25, 2018. A security drill was held in front of the Beijing Railway Station on Tuesday with police, SWAT and first aid teams learning first-hand how to handle emergency situations. First aid, public security and emergency response were just a few of the things that the teams practiced during the drill. China's holiday travel season has already begun before the Lunar New Year at the beginning of February of 2019. [Photo: Xinhua]

Police officers and SWAT team members take part in a drill in front of the Beijing Railway Station on December 25, 2018. First aid, public security and emergency response were just a few of the things that the teams practiced during the drill. China's holiday travel season has already begun before the Lunar New Year at the beginning of February of 2019. [Photo: Xinhua]

SWAT team members take part in a drill in front of the Beijing Railway Station on December 25, 2018. A security drill was held in front of the Beijing Railway Station on Tuesday with police, SWAT and first aid teams learning first-hand how to handle emergency situations. China's holiday travel season has already begun before the Lunar New Year at the beginning of February of 2019. [Photo: Xinhua]

First Aid team members take part in a drill in front of the Beijing Railway Station on December 25, 2018. [Photo: Xinhua]