united airlines
United Airlines terminal at O'Hare International Airport on April 12, 2017 in Chicago, Illinois. Photo by Scott Olson/Getty Images

Update: Wednesday, July 19 at 9:00 a.m. EDT: This story was updated to include a statement from United Airlines.

"During the boarding process of United flight 1121, from Seattle to Houston, two customers did not follow crew instructions. For the safety and security of our customers and crew, law enforcement was requested by the flight crew. After speaking with these two customers, they voluntarily deplaned."

Original Story:

A woman was arrested at Seattle-Tacoma International Airport after she refused to move luggage up to bins on a United Airlines flight Tuesday, reported Brian Michael of ABC-affiliate KOMO TV Tuesday. The fight resulted in police escorting of all passengers off the plane for safety reasons.

The woman and her mother, in her 80s, had a bag under the seat in front of them that also spread onto the row. The flight crew wanted them to move it to the overhead bin, but the passengers did not want to, said Sea-Tac spokesperson Brian Deroy. Police cleared the plane after an argument resulting from a language barrier began between the two women and flight employees.

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The woman’s daughter allegedly threw something and was arrested. Both were escorted to an office by airline personnel.

United Airlines has been no stranger to incidents such as these on their flights.

In late March 2017, United Airlines made headlines for not allowing two girls wearing leggings to board a flight to Minneapolis leaving from Denver International Airport. Shannon Watts, the founder of Moms Demand Action for Gun Sense in America, live-tweeted the incident. The airline attempted to defend themselves in a statement and claimed the passengers were “pass travelers,” meaning they were relatives or friends of a United Airlines worker and were subject to a different dress code than other passengers.

In early April 2017, the airline faced severe backlash after a man named David Dao, 69, was dragged off a United flight due to "overbooking." While he was violently escorted off Flight 3411 at Chicago O’Hare airport, Dao lost two front teeth and obtained a concussion and a broken nose. The video footage released online received millions of views, prompting United Airlines to issue an apology to Dao. The two parties reached a legal settlement after the incident.

Video footage of a United Airlines employee mistreating an elderly man from July 2015 hit the interned mid-June 2017. In the video, the airline employee shoved Ronald Tigner, 71, to the floor. It was shown on NBC-affiliate KPRC. The incident occurred at Houston’s George Bush Intercontinental Airport. Tigner sued United Airlines and two employees. The airline issued an apology and said the employee shown in the video is no longer employed there.

Read: VIDEO: Mother Of Baby Who Overheated On United Airlines Flight Speaks Out

United Airlines issued an apology to a Hawaiian middle-school teacher in early July. She had to hold her 27-month-old son on her lap during a three-and-a-half-hour flight because the airline gave the toddler’s seat away to a standby passenger. As per United Airline’s protocol, Shirley Yamauchi’s son, Taizo, required his own plane ticket because he is over the age of two. Yamauchi complied with this and bought her son his own ticket, but he was still forced out of his seat. The airline later said that some of their agents mistakenly did not register Taizo as being a passenger with his own seat, which is why they gave away his seat. The airline later apologized to Yamauchi.

After the video of Dao being violently taken off the United flight, complaints against the airline increased by 70 percent.

A representative for United Airlines did not immediately return International Business Times' request for comment.