VIDEO SHOWS: VARIOUS OF DERAILED ROLLER COASTER; BYSTANDERS AT SCENE SHOWS: DAYTONA BEACH, FLORIDA, UNITED STATES OF AMERICA (JUNE 14, 2018) (JASON WILHITE - MUST ON SCREEN COURTESY JASON WILHITE / NO RESALE) 1.

DERAILED ROLLER COASTER 2.

PEOPLE STANDING BELOW COASTER TRYING TO HELP / PERSON LOOKING FROM THE SIDEWALK / DERAILED ROLLER COASTER 3. (MUTE) STILL PHOTOGRAPH OF DERAILED ROLLER COASTER STORY: Video obtained by Reuters shows a derailed roller coaster at Daytona Beach Boardwalk in Florida on Thursday (June 14), as riders were left hanging from the carriages.

Witness Jason Wilhite was 40 feet (12 metres) away from the roller coaster when the accident happened and had bought tickets for his family to the ride but they had decided to come back Friday. "We started walking off, we heard a loud boom and crunching sound and a few women started screaming for help," Wilhite told Reuters.

Two of the riders fell some 34 feet (10 metres) as a result of the derailment, the Daytona Beach Fire Department said on its Twitter page on Thursday evening.

Firefighters had to extract ten riders, of whom six were sent to a hospital, local media reported.