A woman was thrown off a plane Friday night — after a flight attendant allegedly whacked her with her baby’s stroller.

The American Airlines plane was at the gate in San Francisco’s airport when the encounter took place. The woman is seen on the video crying afterward.

Fellow passenger, Surain Adyanthaya, posted it online with the caption:

“OMG. Flight attendant violently took a stroller from a lady with a baby on my flight, hitting her and just missing the baby. Then he tried to fight a passenger who stood up for her.’’

“Then he tried to fight a passenger who stood up for her.’’

An airline employee boards and talk to the man who stood up for her. Her defender says, “you do that to me and I’ll knock you flat. You almost hurt a baby.’’ The employee replies, “stay out of it.’’

The woman and her kids are escorted off the plane, but the flight attendant is allowed to board.

American issued a press release saying, “What we see on this video does not reflect our values or how we care for our customers.’’

The airline upgraded the woman to first class and put her on another flight. It added the employee was “removed from duty.’’

This incident followed a similar confrontation Apr. 9 on a United Airlines plane in Chicago, when airline employes physically manhandled a doctor off the plane after he refused to give up his seat. He was left bloody with several injuries.