The last day of school Thursday at Mountain Vista Community School turned violent and led to a brief lockdown, according to an online blotter entry from Colorado Springs police.

Officers were dispatched to a disturbance involving multiple parents at the Harrison District 2 school at 2550 Dorset Drive that serves kindergarten through eighth-grade students.

A spokesperson with Colorado Springs police said a fight broke out between parents during a graduation ceremony and grew to involve as many as eight people.

The fight eventually moved outside and the school was put on lockdown as police arrived to a “very chaotic scene” and eventually deescalated the situation, according to the blotter entry. No weapons were involved; the lockdown lasted for less than an hour.

Some minor injuries were reported, according to Gazette news partner KOAA.

Other parents attending the graduation were moved to a single location to begin checking out their children and clearing the area. No arrests were announced by police, although an investigation will continue.

Representatives with Harrison D-2 were not available for comment, but the school confirmed the disturbance in a social media post and said that “The building remains safe and secure, and the school day is continuing as normal.”