An overloaded kindergarten school bus caught fire on Monday in Puyang City in central China's Henan Province, killing 4 children, local authorities said Tuesday.

A total of 13 children were on the eight-seat minibus when the accident happened in Zhangyi Village in Puyang. Another child and the driver were severely injured. Two children suffered minor injuries, an official with the Puyang city government said.

The minibus belongs to Doucunji Kindergarten, the official said, adding that the cause of the accident is currently under investigation.