Description: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.(0:45)