WUHAN - Two high school students were killed and another 13 injured after their bus crashed into a tree and overturned in Central China's Hubei province, local authorities said on Monday.

A group of 34 senior high school students and a teacher were on their way to a chemistry competition in downtown Jingzhou when their bus crashed into a roadside tree and rolled over at 6:20 am Sunday, said an official with the city government's information office.

Two students died in the accident and another 13 were wounded, among whom two suffered severe injuries, said the spokesman.

The students were from the No 1 High School in Songzi city which is administered by the city of Jingzhou.

The rainy weather may have been one of the reasons that caused the tragedy and a further investigation is under way.