¡¡ HANOI, March 15 (Xinhuanet) -- Vietnamese police said over-speeding is attributed to the train derailment in central Thua Thien Hue on March 12, which is considered the most tragic rail accident in Vietnam in the past 30 years.

    After probing into the train's black box, the police concluded that the train was running at a speed of 68 kmh just before the accident occurred, instead of 40 kmh as stipulated, local newspaper Transport reported on Tuesday.

    The accident killed 11 local people, severely injured 70 others,damaged 8 out of 13 compartments, and blocked other trains from running for 26 hours. It occurred in Phu Loc district when the train with 500 passengers and 29 staff was traveling from Hanoi capital to Ho Chi Minh City. Enditem