State media : Shanghai 's subway Line 1 accident was caused by human error . The accident injured 295 people , many of whom are still receiving treatment in hospital . A train collision in a tunnel in Shanghai 's subway Line 10 China 's fast development of its rail systems have raised concerns over safety .
State media : Shanghai 's subway Line 1 accident was caused by human error . The accident injured 295 people , many of whom are still receiving treatment in hospital . China 's fast development of its rail systems have raised concerns over safety .