BREAKING: No fatalities reported after plane slides off runway near NAS Jacksonville

JACKSONVILLE, Fla. (WCJB) -- UPDATE SATURDAY AT 12:30 PM: The National Transportation Safety Board (NTSB) has announced a team of 16 investigators will be on scene to determine what caused the plane to end up in the St. Johns.

The Miami Air International plane was traveling from Cuba to Jacksonville with 143 people on board, according to the Associated Press.

The NTSB tweeted that the investigators were arriving at Naval Air Station Jacksonville.

None of the people on the plane at the time of the crash were critically injured, although some were taken to hospitals in the area.
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UPDATE FRIDAY AT 12:10 AM: The Jacksonville Sheriff's Office confirms 21 adults have been taken to area hospitals by Jacksonville Fire Rescue. All are listed in good condition, and there are no critical injuries. Over 80 firefighters have assisted.
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Crews from the Jacksonville Sheriff's Office and Jacksonville Fire Rescue responded to reports of a plane down on the St. Johns River late Friday night.

Jacksonville news station News4Jax is reporting there were 142 passengers on-board the plane when it landed in the river. Mayor Lenny Curry tweeted that everyone on the plane is alive and well.

The plane belonged to Miami Air International, an airline that operates international charter flights.

This is a developing story. More information will be reported as it becomes available.