Portland-Atlanta flight diverted to Okla. due to unruly passenger

(Update: federal air marshals de-escalate situation)

TULSA, Okla. (AP) – A U.S. attorney in Oklahoma says federal air marshals de-escalated a situation involving an unruly passenger that forced a cross-country Delta Air Lines flight to land in Tulsa, Oklahoma.

Tulsa-based prosecutor R. Trent Shores said in a statement Wednesday that the FBI will continue to investigate and that his office will review whether the passenger’s actions violated federal law.

It’s unclear what the passenger did.

Tulsa International Airport spokeswoman Alexis Higgins says Delta flight 1156 from Portland, Oregon, to Atlanta landed in Tulsa at around 11:30 a.m. and the passenger was removed.

Delta apologized to customers whose plans were delayed. Delta spokesman Anthony Black says the flight landed in Atlanta at around 4:30 p.m.

Delta spokesman Anthony Black says flight 1156 landed “without incident” in Tulsa and that there were 172 passengers and six crew members onboard the Boeing 737-900.