A bus veered off a highway and plunged 60 metres into a ravine here in southwestern China, killing at least 13 people and injuring over a dozen others, Chinese state broadcaster CCTV reported.
The accident happened on Monday afternoon in Yunnan Province, near the border with Myanmar.
Twenty-nine people, including the driver, were on board the 30-seat tour bus.
State media said two of those injured were in critical condition.
A preliminary investigation suggested the driver was responsible for the accident, which happened in heavy rain.
But further investigations into the cause of the crash were still underway.
