At least 36 people died in a collision between a methanol tanker and a double-decker sleeper bus on a motorway in northern China on Sunday, state media .
The two vehicles collided at about 02:00 local time (18:00 GMT Saturday) on the Baotou-Maoming motorway.
"The front part of the bus was seriously damaged'.Yue Jiuxiang, a local traffic police official in charge of the rescue operation, said most of the passengers were asleep at the time of the crash.
"Soon after the collision, the bus was engulfed by flames," he told to state-broadcaster China Central Television.
Yue said the bus was travelling from Baotou in Inner Mongolia to the Shaanxi provincial capital Xian when the collision occurred.
Twenty-eight bodies have been found from the debris. The exact death toll is yet to be known as the number of people aboard the 39-seat bus is unavailable at the moment.
Emergency services were still verifying the number of casualties, who were mainly in the 39-seat bus, the news agency Xinhua reported.
China's roads are highly dangerous, with traffic laws and safety widely flouted, and truck drivers typically overworked.
The accident was the worst in China since a fire on an overcrowded sleeper bus carrying flammable materials killed 41 passengers in central China in July last year, according to the country's work safety watchdog.