ONTARIO, Calif. — A person was reportedly jumped during a large fight outside Toyota Arena near the entrance doors during a graduation ceremony on Sunday, according to a viewer who witnessed the incident.

Video provided by the viewer appears to show multiple individuals involved in the altercation as crowds gathered outside the arena. The circumstances leading up to the fight remain unclear.

It is unknown whether the person who was reportedly jumped suffered any injuries or if any arrests were made. Additional details have not been released.