Video shows the moment 49ers and Raiders fans engage in bloody brawl at California In-N-Out, 2 people stabbed

Eye-opening video shows the moment that fans of the San Francisco 49ers and Las Vegas Raiders engaged in a bloody brawl at a California In-N-Out restaurant that left two people with serious stab wounds.

On Friday night, the 49ers lost their final preseason game against the Los Angeles Chargers. Following the game, many 49ers fans left Levi's Stadium and went to an In-N-Out restaurant in Santa Clara – about a mile away. There were also Raiders fans at the In-N-Out in the 3000 block of Mission College Boulevard.

The Santa Clara Police Department said in a statement on Facebook that a massive brawl erupted between the two NFL fanbases around 11:12 p.m. Video shows fists flying at the burger joint.

At one point, three men gang up on a shirtless man. He is knocked to the floor and is helpless as they punch and kick him. Suddenly, a man appears with a small knife or a shiv and repeatedly stabs the man. Blood is seen dripping on the floor.

Police said at least 10 people were involved in the violent melee at the fast food restaurant.

When police arrived at the crime scene, police officers detained several people for their role in the fight. Police said two people were stabbed, and they were transported to a local hospital. The conditions of the stabbing victims are not known.

So far, two people have been arrested for the brouhaha, but they were not named by police. Police are still searching for suspects and the investigation into the brawl and stabbings remains ongoing.

Police have not said what caused the fight.

The Santa Clara Police Department is urging anyone with information or video evidence of the brawl to contact Detective Sgt. Frank Hagg at (408) 615-4814 or email FHagg@santaclaraca.gov. Those who want to provide an anonymous tip about the fight can leave a message on the SCPD Anonymous Tip Line at (408) 615-4TIP (4847).

A brutal brawl broke out last week in the stands during a 49ers preseason game at Levi's Stadium.

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(WARNING: Graphic video)

2 stabbed during In-N-Out Burger brawlwww.youtube.com