A Delta Air Lines flight from Portland to Atlanta was diverted to Tulsa due to a disruptive passenger Wednesday morning.

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The flight diverted at around 11:30 a.m. because of “a reported disturbance aboard the aircraft with a passenger,” according to Tulsa airport spokeswoman Alexis Higgins.

The U.S. Attorney for the Northern District of Oklahoma, Trent Shores, issued a statement saying federal air marshals on the plane “successfully deescalated and controlled the situation, and the flight landed in Tulsa without further incident.”

After the plane landed, the passenger was removed from the plane and detained for questioning by the FBI, according to Higgins.

The response and initial investigation involved Transportation Security Administration, Homeland Security Investigations and Tulsa airport authorities, according to the U.S. Attorney’s office.

The passenger has been taken into custody. Law enforcement and the FBI will investigate the matter, while the U.S. Attorney’s office “will review whether the alleged unruly conduct violated federal law.”

Atlanta-based Delta said Flight 1156 on a Boeing 737-900 had 172 customers and six working crew members. The airline said Wednesday afternoon after the diversion that it was working to prepare the plane to continue onto Atlanta.

“Delta apologizes to our customers delayed by this diversion,” the airline said in a written statement.

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