Getty Images/Justin Sullivan
Authorities were responding to a haz mat situation.
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The Broward Sheriff's Office Fire Rescue was responding to a possible haz mat situation at the Fort Lauderdale-Hollywood International Airport Friday.
Authorities said four patients were being treated for respiratory complaints from an unknown substance.
Part of Terminal 2 at 100 Terminal Drive was evacuated so that haz mat technicians could investigate the situation.
Airport spokesman Greg Meyer said the incident stemmed from a undtermined chemical odor in the terminal.
Stay with NBCMiami.com for updates.
