FORT LAUDERDALE, Fla. (AP) — No charges will be filed after authorities say a "misunderstanding," not a bomb threat, caused a Spirit Airlines flight to return to a Florida airport.

Spirit Flight 595 departed from Fort Lauderdale-Hollywood International Airport late Thursday, bound for Minneapolis with 92 passengers and six crew members. The plane quickly returned to the airport because of what the Broward Sheriff's Office called a "perceived" bomb threat.

Sheriff's Office spokeswoman Keyla Concepcion says no explosives were found, and the FBI interviewed two men along with five other passengers and flight attendants.

Concepcion says the FBI determined there wasn't a threat, and the incident stemmed from an overheard phone conversation and a subsequent miscommunication among passengers, the flight crew and the pilot.

A statement from the airline says the crew followed safety protocols.

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(previous version)

FORT LAUDERDALE, Fla. (AP) — A Spirit Airlines flight bound for Minneapolis had to return to Fort Lauderdale-Hollywood International Airport after authorities say a passenger possibly made a bomb threat.

Spirit Flight 595, an Airbus A320 carrying 92 passengers took off about 10 p.m. Thursday.

In a statement to the South Florida Sun Sentinel (http://bit.ly/1XdXb9l ), the airline said the flight returned to the gate after about 15 minutes in the air "because of a security issue on board."

Broward Sheriff's Office spokeswoman Keyla Concepcion says the flight returned "after a passenger was overheard possibly making mention of a bomb."

Concepcion says the passengers disembarked the plane while it was swept for explosives. She says no indication of explosives was found on board, but two men would be interviewed by the sheriff's office and the FBI.

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