Updated

A man in northern China rammed a car loaded with a gas tank and firecrackers into a group of middle schoolers, injuring 13 in the country's latest attack on students.

The man attempted to set off an explosion after running down 23 students at Fengning No. 1 Middle School in northern China's Hebei province on Monday, the official Xinhua News Agency said. The man is in police custody.

Xinhua did not identify the man in its report Tuesday, but said his daughter was killed in a suspected murder case three years ago and he has a history of lodging complaints with authorities. Xinhua said the man did not act under the influence of alcohol or drugs.

Students were hospitalized with injuries that included skull fractures and crushed feet, Xinhua said.

The local Fengning county government confirmed the incident in a written statement and identified the man by his family name of Yin. It said Yin was driving a Geely sedan.

Citing eyewitnesses, the Beijing-based state-run Jinghua Times said the accident occurred when students were leaving school for noon break and that the car accelerated and knocked down students, many of whom were on bikes.

It said the man later set the car on fire.

On Dec. 14, a Chinese man took a kitchen knife and went on a stabbing spree that left 23 students wounded in an elementary school in Henan province.

China has seen more than a half-dozen school attacks in less than three years, though the death tolls have been mostly in single digits, largely because knives have been the most-used weapon. China largely prohibits private ownership of guns.