The vehicle burst into flames as it drove through Hunan province Friday with 56 people on board -- including 53 passengers, two drivers and a tour guide -- according to local authorities.
The injured, including five in a critical condition, were rushed to hospital for treatment.
The two drivers were detained and an investigation into the cause of the accident is under way, according to a statement posted on the city of Changde's official social media account on Weibo.
Grisly car accidents are common in China, where transport authorities struggle to enforce safety regulations, which are often flouted.
Some 58,000 people were killed in traffic accidents across the country in 2015, the latest year for which the data is available publicly.
Violations of traffic laws were blamed for nearly 90 percent of accidents that caused deaths or injuries that year.
In November, at least 13 people died when a bus plunged off a bridge in Chongqing municipality, after the driver got into a fist fight with a passenger who had missed her stop.
Search and rescue teams dispatched more than 70 boats, as well as a team of scuba divers and underwater robots, to find the wreckage and retrieve bodies from the water.
In February, a van packed with pressurised gas tanks and petrol-filled bottles caught fire and ploughed into pedestrians in Shanghai, leaving at least 18 people injured.
Authorities concluded that it had been a "traffic accident".
Horton, who took silver behind Sun at the weekend, refused to step onto the top step of the podium for photos after the medal ceremony in Gwangju, as doping allegations swirl around Sun.
American Caeleb Dressel swam the second-fastest 100m freestyle in history to retain his world title on Thursday as China lashed out at the anti-doping protests targeting Olympic star Sun Yang.
President Xi Jinping has vowed to make China a footballing force and is prepared to go to great lengths to do it, sending thousands of toddlers to “Football-focused” kindergartens.
A second grand prix — most likely on the streets — would complement the existing one on the $450 million Shanghai International Circuit. No country currently has two Formula One races, although F1 officials are negotiating for a second grand prix in the United States.
A conveyor belt caught fire in the early hours of the morning, state news agency Xinhua cited the government as saying, which produced dangerous levels of carbon monoxide.
Former Pakistan Prime Minister Nawaz Sharif has that said those responsible for sending him to jail have "sunk the country" and these "antics" would not be allowed to carry on.
Pakistan Prime Minister Imran Khan has warned against hasty withdrawal of foreign powers from Afghanistan, according to media reports.