Three Muslim leaders who were forced off a US plane last week have sent their cases to the Council on American-Islamic Relations (CAIR).
Masudur Rahman and Mohamed Zaghloul of Memphis, Tennessee and Al-Amin Abdul Latif of New York were heading to a conference on Islamophobia in Charlotte, North Carolina.
Imam al-Amin Abdul-Latif was barred from boarding a flight from New York to Charlotte late on Friday.
Rahman and Zaghloul of the Islamic Association of Greater Memphis were pulled from a connecting flight from Memphis to Charlotte on the same day.
CAIR is currently investigating the case and has asked all levels of authority involved, from the Transportation Security Administration (TSA) to Department of Justice, to do the same.
"I think it's fairly clear that the pilot or somebody on the plane just didn't want to fly with somebody that they perceived to be Muslim," CAIR spokesperson Ibrahim Hooper told a Press TV correspondent.
Rahman and Zaghloul -- wearing Islamic clothing -- went through two security checks before boarding their plane but were then asked to leave by the TSA.
Rahman said they were told that the pilot thought "some passengers might be uncomfortable" with their presence on the plane.
According to a TSA spokesman, the decision to remove the two passengers was made by the airline.
Atlantic Southeast Airlines, a regional partner operating as a Delta Connection, did not agree on an interview but released a statement explaining Rahman and Zaghloul were compensated and re-accommodated for the next available flight.
"We take security and safety very seriously, and the event is currently under investigation," the statement said.
Rahman told Press TV that it was not a security issue and that they were "checked three or four times until entering the plane."
Rahman and Zaghloul arrived nine hours late to the conference.
The case of Imam al-Amin Abdul Latif from New York is not yet clear.