The crash started a mountain fire.
A China Eastern Airlines plane with 133 people on board crashed in mountains in south China on Monday while on a flight from the city of Kunming to Guangzhou, state media reported.
The jet involved in the incident was a Boeing 737 aircraft and the number of casualties was not immediately known, CCTV said.
The incident happened in the southern province of Guangxi and sparked a mountainside fire.
Rescue workers close to the crash site say there is no confirmation yet of casualties.