Police are hunting a woman who assaulted a McDonald's employee in a ketchup row.

Bizarre on Female First

Bizarre on Female First

An angry customer ''punched'' the manager of the restaurant in Santa Ana, California after her request for sachets of ketchup was denied.

Storming behind the counter, the woman grabs the worker by the throat and pushes her around the service area, before delivering blows to her head and body.

As one of the victim's colleagues steps in to try and break up the altercation, a patron pulls up to the Drive-thru window waiting to be served.

The dedicated employee quickly steps away from the scrap and serves the customer before aiding her colleague.

Police are keen to find the criminal.

Officer Anthony Bertagna said: ''She's the one that committed the crime. There's no reason to physically assault someone because you didn't get enough ketchup.''