An out-of-control brawl has erupted inside a California conference heart, with more than 100 combined martial arts followers piling each other as safety desperately struggled to break up the chaos.

Footage from inside the Visalia Convention Center reveals mobs of individuals speeding into the center of the venue as the battle escalates, as others stand back and document the mayhem on their cell telephones.

Wild video captured the second a huge brawl erupted inside a California conference heart, with more than 100 individuals piling into the mess.

Security personnel can be seen operating into the crowd and attempting to separate these concerned.

The violence broke out Saturday night time during the 559 Fights Next Gen 4 combined martial arts occasion, according to the Visalia Police Department.

Officers were already working at the occasion when the combating erupted, but the main scale of the disturbance compelled them to call for backup.

The violence broke out Saturday night time during the 559 Fights Next Gen 4 combined martial arts occasion. ABC 30

Police said roughly 100 individuals were concerned in the preliminary brawl, while several other fights concurrently broke out elsewhere inside the venue.

Visalia Police despatched 26 models to the conference heart, with officers regain management and clearing the crowds.

Fifteen individuals were arrested in the aftermath and booked into the Tulare County Adult Pre-Trial Detention Facility on numerous prices. Instagram/@visaliaconventioncenter

The Tulare County Sheriff’s Office, alongside with the Farmersville and Exeter police departments, were also management the rampage.

Fifteen individuals were arrested in the aftermath and booked into the Tulare County Adult Pre-Trial Detention Facility on numerous prices, according to police.

Three Visalia Police officers suffered minor accidents while attempting to carry the sprawling disturbance under management.