Lam Cheng Yuet-ngor (L), Chief Executive of Hong Kong Special Administrative Region (HKSAR), is pictured on board the Vibrant Express train during a test run on the Guangzhou-Shenzhen-Hong Kong High Speed Rail in Hong Kong, south China, Sept. 22, 2018. The opening ceremony of the Hong Kong section of the Guangzhou-Shenzhen-Hong Kong High Speed Rail took place here on Saturday. HKSAR Chief Executive Lam Cheng Yuet-ngor said at the opening ceremony that the opening of the railway's Hong Kong section marked the region's official connection with the national high-speed railway network. (Xinhua/Li Gang)