Airlines in the US have banned alcohol onboard following a shocking assault which saw a crew member lose two teeth.
Sickening footage of a brawl onboard a Southwest Airlines plane shows a stewardess being attacked in front of horrified passengers.
A customer, named in the US as Vyvianna Quinonez, 28, reportedly flew into a rage after being instructed to put her seat belt on.
She was arrested on suspicion of felony battery causing serious injury after the assault - which sparked calls for more protection for airline staff.
In the aftermath of the assault Southwest announced it would "re-evaluate the restart of alcohol service on board", and subsequently announced it was suspending sales "indefinitely".
It happened during a flight from Sacramento to San Diego.
Now American Airlines has joined Southwest in suspending alcohol sales, saying the move will keep workers safe.
Brady Byrnes, managing director of flight service at American, wrote in a memo seen by CNN : "While we appreciate that customers and crewmembers are eager to return to 'normal', we will move cautiously and deliberately when restoring pre-COVID practices.
"We also recognize that alcohol can contribute to atypical behavior from customers onboard and we owe it to our crew not to potentially exacerbate what can already be a new and stressful situation for our customers."
Lyn Montgomery, president of the TWU Local 556 union, which represents Northern airlines staff, said: "We are asking our carrier, the government and the flying public's help in ending this epidemic of aggression and assault.
"Flight attendants are first responders in the sky who are focused on safety. As people return to the skies, we are asking for everyone's help in complying with flight attendant requests to help ensure a safe and fun atmosphere for all."
In a statement police said: "According to witnesses, an altercation between a passenger and a flight attendant had taken place during the flight.
"During the altercation, the passenger struck the flight attendant, causing serious injuries".
Southwest spokesman Chris Mainz told NBC the passenger had "repeatedly ignored standard inflight instructions and became verbally and physically abusive upon landing."
