Seven male university students in China's Hunan province chase male middle school students with iron pipes in hand...all arrested = Chinese report

Police have taken custody of male university students who entered a junior high school in Hengyang City, Hunan Province, China, with iron pipes and chased male students around.
According to the Changning City Police Department, around 5:40 p.m. (local time) on the 16th, police received a report of a fight in front of the school gate of a junior high school in the city.
As a result of the investigation, when seven university students, including Mr. Hong (male, 22), visited the said junior high school on the afternoon of the 16th to promote the university, they saw Mr. Zhang, a student of this junior high school, outside the school gate. (male, 15)
It turned out that they had been arguing over something trivial. In a video posted online, male university students are seen standing in front of the school gate holding iron pipes. Toward Mr. Zhang who ran away into the school grounds.
A man's voice can also be heard yelling, "Come out!" Afterwards, the seven university students climbed over the fence and entered the school grounds, chasing Mr. Zhang around. Zhang sustained minor injuries while running away from the men.
Police took custody of Hong and seven other university students. We are currently investigating the circumstances behind the incident.