Security officials in one of China's largest provinces have commissioned a surveillance system they say they want to use to track journalists and international students among other "suspicious people", documents reviewed by Reuters showed.

A July 29 tender document published on the Henan provincial government’s procurement website - reported in the media for the first time - details plans for a system that can compile individual files on such persons of interest coming to Henan using 3,000 facial recognition cameras that connect to various national and regional databases.

A 5 million yuan (US$782,000) contract was awarded on Sept 17 to Chinese tech company Neusoft, which was required to finish building the system within two months of signing the contract, separate documents published on the Henan government procurement website showed. Reuters was unable to establish if the system is currently operating...