HANOI, Sept. 21 (Xinhua) -- A bus crashed with a truck on Sunday morning at around 4 a.m. in Vietnam's central Nghe An province, killing 15 people on the bus and leaving 13 injured, according to the local traffic safety bureau.

    The bus was traveling from south to north on the No.1 national highway when it crashed with the truck coming from the opposite direction, said Vo Minh Duc, an official with the Nghe An Provincial Traffic Safety Bureau.

    The cause of the accident is still under investigation, said Duc.