Severe turbulence on Allegiant flight injures passengers, crew

An Allegiant Air flight experienced severe turbulence en route to Florida, causing multiple injuries.
Two passengers and two flight attendants were hospitalized; others were treated at the airport.
The plane dropped around 5,000 feet in under two minutes during the incident.
Passengers described a chaotic scene, with a flight attendant thrown into the air.
Investigations into the turbulence will be conducted by Allegiant, the FAA and NTSB.