At least 35 people, including two children, died after a tour bus was engulfed in flames on Sunday in Hunan province, local authorities said.

The bus was carrying 55 people, the county government of Yizhang said, correcting a previous report that said 56 were on board. Eleven people were hospitalized, including four who were seriously injured.

The accident happened at about 10:20 a.m., when the bus crashed into a guardrail on a highway in Yizhang. The ensuing oil leak caused the fire, according to the government.