A police officer in Blaine suffered a concussion, after trying to break up a fight over the weekend at a carnival set up in the parking lot of Northtown Mall.
Police released drone video showing the brawl that broke out Saturday evening, forcing the carnival to shut down early.
In the video, a police drone shows a fight involving a group of teenage girls, surrounded by a large crowd of onlookers – many with their phones out apparently recording the fight.
Two Blaine officers are seen trying to break up the fight.
But, the assault continues, with one girl jumping on the back of an officer.
Another officer also caught an elbow to the head, suffering a concussion from the injury.
The carnival is expected to reopen on Wednesday, with extra precautions.
"There will be one entry point, if you're under 18 you must be accompanied by an adult," said Blaine Police Commander Mark Boerboom.
Two people were arrested after the fight broke up.
"We're certainly fortunate that there's no additional injuries," said Boerboom.
Police say this is the second year in a row the carnival at North Town Mall had to be shut down because of public disturbance.