At least 30 people were killed after a tour bus burst into flames in Hunan Province on Sunday, local authorities confirmed. 
The accident happened when the bus carrying 56 people crashed into the guardrails on a highway in Yizhang County. The ensuing oil leak may have caused the fire, the county government said. 
Twenty-one people have been sent to hospitals, and rescuers are still searching the charred frame of the bus, (Xinhua) news agency reported. 
The police has detained the driver.

Source ; QNA