Nine Muslim passengers were kicked off a flight from Washington, D.C., to Florida after other passengers reported hearing a suspicious remark about airplane security.

Despite issuing an official apology to all the passengers on the flight on Friday, the airline has maintained that the steps taken on Thursday were necessary.

"We regret that the issue escalated to the heightened security level it did on New Year's Day, but we trust everyone understands that the security and the safety of our passengers is paramount and cannot be compromised," said the news release issued by the company.

AirTran Airways spokesman Tad Hutcheson called the incident on the New Year's Day flight from Reagan National Airport to Orlando, Fla., a misunderstanding, but defended the company's response. He said the airline followed federal rules and did nothing wrong.

One of the Muslim passengers, Kashif Irfan, told the Washington Post the confusion began when his brother was talking about the safest place to sit on an airplane.

"My brother and his wife were discussing some aspect of airport security," Irfan said. "The only thing my brother said was, 'Wow, the jets are right next to my window.' "

Irfan told the newspaper he thought he and the others were profiled because of their appearance.

The men had beards and the women wore headscarves, traditional Muslim attire.

Irfan, 34, is an anesthesiologist and his brother is a lawyer. Both live in Alexandria, Va., with their families and were born in Detroit. They were travelling with their wives, Irfan's sister-in-law and Irfan's three sons, ages 7, 4 and 2.

A family friend also was travelling with the group to a religious retreat in Florida.

Federal officials ordered the rest of the passengers off the plane and re-screened them before allowing the flight to depart about two hours behind schedule.

Not allowed on another flight

The family was upset that AirTran didn't allow the Muslim passengers to book another flight.

The airline said in a news release issued earlier on Friday that one of the passengers became irate, made inappropriate comments and had to be escorted away from a gate desk by local law enforcement.

"The FBI agents actually cleared our names," Inayet Sahin, one of the family members kicked off the flight, told CNN. "They went on our behalf and spoke to the airlines and said, 'There is no suspicious activity here. They are clear. Please let them get on a flight so they can go on their vacation,' and they still refused."

The family and friend eventually made it to their destination on a US Airways flight.

In the written statement, AirTran said it refunded the airfare for the nine passengers and planned to reimburse them for replacement tickets they bought on another airline.

AirTran also apologized to 95 other passengers on the flight who were delayed because of the incident.

"We apologize to all of the passengers — to the nine who had to undergo extensive interviews from the authorities and to the 95 who ultimately made the flight. Nobody on Flight 175 reached their destination on time on New Year's Day, and we regret it," the written apology said.

Hutcheson said AirTran had initially refused to rebook the family because the airline had not been notified the investigation was complete.

The passengers are now welcome to fly on AirTran since being cleared by authorities, he said.

"At the end of the day, people got on and made comments they shouldn't have made on the airplane, and other people heard them," Hutcheson said. "Other people heard them, misconstrued them. It just so happened these people were of Muslim faith and appearance. It escalated, it got out of hand and everyone took precautions."

Transport official defends handling of situation

Christopher White, a federal Transportation Security Administration spokesman, said the situation was handled appropriately.

White said the pilot, after being informed of the remarks, requested that two federal air marshals on board remove the individuals.

TSA then alerted authorities, including the FBI, which conducted an investigation. Once authorities determined there was no threat, it was up to the airline whether to allow the family to reboard.

"If the pilot is uncomfortable with someone flying on their plane, that's their decision," White said.

A spokesman for the FBI did not immediately respond to a request for comment Friday.

One of the passengers removed, Abdur Razack Aziz, said he will consider a lawsuit.