BEIJING, May 9 (Xinhua) -- China's top procuratorate has declared war against crimes related to international freight and passenger railway services along the Silk Road Economic Belt.

Smuggling and human trafficking by international trains and crimes endangering railway safety were highlighted in a guideline issued by the railway division of the Supreme People's Procuratorate on Tuesday.

China now has express freight services to 28 European cities.

Procuratorial organs will also exert more strength in investigations into cases regarding the erosion of state assets in overseas railway projects, the guideline said.

The Belt and Road Initiative is China-proposed trade and infrastructure plan connecting Asia with Europe and Africa.

China will host the Belt and Road Forum for International Cooperation on May 14 and 15.