A McDonald’s employee and a customer were caught on camera in a brutal fight that allegedly started over a free soda.

The fight, which was filmed by Nevada resident Marie Dayag, supposedly broke out when the customer asked for a water cup and then allegedly tried to fill it with soda.

WARNING: Clip contains graphic language and violence.

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According to Dayag, the McDonald’s supervisor turned off the soda machine to prevent the woman from filling her water cup with a soft drink.

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In the footage, the customer can be seen provoking the McDonald’s employee by yelling "fight me," and throwing a french fry before the fight happened. Eventually, the fast food worker leaves the counter and the customer throws a milkshake at her, before hitting her in the face with a tray.

The staff member is seen grabbing the woman and punching her in the face numerous times before another employee tries to break them up — before also being pulled into the fight.

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At the end of the video, the customer tries to start things back up by threatening the worker with a chair, but the employee takes the chair and puts it back on the floor before walking away.

The McDonald's location at which the fight occurred was not reported.