Bomb threat at Fort Lauderdale Airport's Terminal 1.

Broward Sheriff's Office Airport District responded.

Terminal's upper level evacuated as a precaution.

Departures delayed for just over an hour.

Travelers express gratitude for law enforcement.

Concerns about missed flights and frustration.

Incident occurred around 5:26 p.m. on Sunday night.

Law enforcement responds to reported bomb threat.

Precautionary measures taken for public safety.

Traveler, Jadyna Seelye, urges calm and proper handling.

Deputies detain a man for questioning during the investigation.

Heightened security measures implemented at the airport.