NANNING, March 19 -- The death toll from an incident in which a huge boulder fell off a mountain in south China's Guangxi Zhuang Autonomous Region on Thursday morning has risen to seven, after three people rushed to hospital were confirmed dead.

Four people were confirmed dead at the scene, after the incident occurred at around 9 a.m. A tourist group was visiting the site at the time.

An unknown number of injured people are being treated in a Guilin hospital. They include one who has a fractured bone in his leg.