Police are investigating a video from Korea that shows a kindergarten teacher assaulting a 4-year-old student.

Surveillance video in the classroom, obtained by Korean Observer, shows a teacher wind up her arm and slap a child across the face. The child went flying onto the floor.

The 33-year-old teacher, with the last name Yoon, apparently slapped the girl after finding out that the student did not eat much of her food, police told Korean Observer.

After the teacher smacked the girl, the 4-year-old came back toward the teacher and ate a piece of leftover food from the ground.

The video also shows other kindergarten students witnessing the altercation while kneeling down in the corner.

Police are still investigating the incident but told Korean Observer they are considering arresting Yoon on charges of child abuse and plan to summon the head of the kindergarten for questioning.

Watch the surveillance video of the altercation here: