One of the surivors of a bus crash in Gansu on Wednesday is being treated at a hospital. The crash killed 20 people and injured 44 children.[Photo/CFP]

One of the surivors of a bus crash in Gansu on Wednesday is being treated at a hospital in Gansu province.[Photo/CFP]

LANZHOU - The death toll in a school bus accident on Wednesday morning in the northwest province of Gansu has increased to 20, following the death of one child later Wednesday. The victims, 18 preschoolers and two adults, died in a head-on collision between a school bus and a truck in the city of Qingyang, said an official from the city's work safety bureau.

The statement said 44 more children were injured in the accident and have been hospitalized. Twelve of the injured are in serious condition.