Tampa, Florida - Sixteen people have been safely evacuated from the Cheetah Hunt roller-coaster at Busch Gardens in Tampa, Florida, after the coaster stopped functioning.

The park posted the update on its official Twitter account shortly after 6pm on Wednesday.

Park spokesman Travis Claytor had said the coaster got stuck just after 2.30pm on the ride's first embankment, before it got to the main launch track and first major hill.

Maintenance workers initially tried to nudge the coaster back into the station. When that didn't work, park officials called Tampa Fire Rescue.

Park officials didn't immediately know what caused the ride malfunction.

The coaster remained shut down on Wednesday evening.