Test trains make trial runs in Heilongjiang

Early on Monday, test train No 55001 left Harbin West Railway Station in Heilongjiang province to begin trial runs on the longest high-speed rail line in China's cold zone.

The 343-kilometer line with 19 stops links Harbin to Jiamusi.

Construction began in July 2014 as one of the key projects in China's medium and long-term railway network plan. The country's railway network is expected to hit 175,000 km by 2025, up significantly from 127,000 km of operating track last year.