A video of a passenger attacking a United Airlines flight attendant is going viral on the internet and shocking the netizens. The incident took place on a flight travelling from San Francisco to Chicago. In the viral video, a woman passenger holding a child has seen screaming at a flight attendant and being told to step back. It is learnt that the incident took place after the flight landed at Chicago's O'Hare International Airport. The other flight attendants were seen rushing toward the scene to rescue their colleague. The flight attendant was immediately shifted to the hospital and said that no serious injuries were reported.