According to KTLA:
A Southwest Airlines passenger who said she had a life-threatening pet allergy was physically removed from a Los Angeles-bound plane prior to taking off in Baltimore Tuesday, and the incident was captured by fellow passengers on video.
There were two dogs on the plane and the woman had asked that they be removed because she had a deadly allergy.
Southwest Airlines said in a statement that one of the dogs was an “emotional support” animal and the other was a pet.
When the passenger was informed that Southwest could not remove the paying passengers or dogs due to airline's policy, the woman indicated she wanted to stay on the flight. But crew members were concerned they would need to divert the flight if she had a reaction.
Below is a video of what happened next.
Southwest's statement described the airline's policy and what happened:
Our policy states that a Customer (without a medical certificate) may be denied boarding if they report a life-threatening allergic reaction and cannot travel safely with an animal onboard. Our Flight Crew made repeated attempts to explain the situation to the Customer, however, she refused to deplane and law enforcement became involved.
Click here to read more.