A new high-speed railway will be built soon between Shanghai and Nanjing, Jiangsu province, linking up more cities in the Yangtze River Delta and shortening travel time in one of China's economic powerhouses, according to a recently released official document.

The railway project's preparatory team said in a notice that it has entrusted two companies to conduct an environmental assessment of the new railway.

The notice said the new 274-km line will link Nanjing and Taicang, where the new line will join another railway under construction to reach Shanghai.