HONG KONG — Five children were killed on Thursday when a car veered across the centerline of a street and slammed into a group of students and adults in a city in northeastern China, according to Chinese state news media reports.

China Central Television reported that in addition to the five killed, 16 children and two adults were also injured. A graphic video that circulated on social media sites showed several children lying sprawled on the road after the car plowed through them.

The driver, surnamed Han, did not stop and was arrested two hours later in a rural area outside the city, Huludao, in Liaoning Province Beijing Youth Daily reported. The newspaper published photos online showing police officers surrounding Mr. Han.

People’s Daily, a state-run newspaper, said the 29-year-old suspect was unemployed and had recently been having marital conflicts. It said he drove his car into “random targets.”