The incident began around 11 p.m. on October 27, after the woman went through the drive-thru of the McDonald's restaurant in the 1500 block of North Bristol Street in Santa Ana, according to the Santa Ana Police Department.
ABC7 reports the store manager informed her that she could not be in the employee area and the woman became violent, kicking, punching and choking the manager.
A furious woman was filmed throttling a McDonald's worker after marching up to him and demanding ketchup.
Police said they hope to find the man, but clarified that he is not in trouble, according to KTLA-TV.
The suspect pummeled the woman employee until a man "intervenes and takes the (suspect) out of there", Bertagna said.More news: California wildfires deadliest in state's history
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Bertgana said if people do not recognise the suspect in the video, they may recognize the male who could lead police to her.
"We're actually grateful for the service he provided; he stopped the assault", Cpl.
"There is no reason that any employee at any business should be assaulted by a patron, much less over not getting enough ketchup". "She's the one that committed the crime".
The woman is described as being Hispanic and around 20 to 25 years old.
The police department released surveillance footage showing the suspect in gray trousers and a pink shirt shoving an employee in a blue shirt.