(KRON) — A large fight that broke out shortly after 11 p.m. on Sunday was captured on video.

The incident occurred in the vicinity of the Outside Lands music festival, a block away from where a woman’s body was earlier found at Golden Gate Park. Three people were seen lying on the ground before being placed into an ambulance.

The cause of the alleged fight and how many were potentially injured remains unclear. Video above shows a strong police presence at the scene.

The fight involved two different security companies, according to an account from a witness at the scene.

KRON4 has reached out to the San Francisco Police Department and Outside Lands for further information.

This is developing news. Stick with KRON4 for updates.