NANNING, Dec. 18 -- A wall collapse in south China's Guangxi Zhuang Autonomous Region Thursday killed three children, local authorities said.

The wall of a house in Jiulong Village of Qinzhou City collapsed at around 5 p.m. and buried four children on their way home from school.

Three children died later in hospital. Another injured is out of danger, according to the village official.

Further investigation is underway.