This is the nailbiting moment a terrified woman clings on for dear life screaming for help as she dangles from a ferris wheel facing a 100ft drop.

Chilling video footage from a carnival in Mandirituba, southern Brazil, shows her in grave dangers after her legs and most of her body slipped through the safety gate. Gripping onto the carriage's bars, she knows one wrong move could see her plunge to her death.

Phone footage of the drama recorded by horrified onlookers shows the big wheel as it inches around an entire rotation before carrying the woman to the ground. As her arms begin to tire having held firm, she can be heard calling: "Help, I’m going to die! I’m going to fall!"

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It later emerged that the woman, who has not been named, had opened the cabin’s safety barrier and tried to get out believing the ride had ended. But just as she stepped forward, the ride lurched forward again leaving her clinging to the railings to stop herself falling, NewsX report.

In a statement, Mandirituba City Hall said "The technical team immediately identified the situation and operated the equipment so that the cabin slowly lowered to the ground, allowing the passenger to be safely removed." Despite the terrifying experience, the woman declined medical attention and walked away unhurt but visibly shaken.

It is not the only shocking fairground incident this summer. The waltzers ride at the Galactic Carnival Festival in Wester Hailes, Edinburgh, left children “shaken up” after it suddenly appeared to malfunction as they went “flying” with thrill-seekers inside.

Dad Kevin McNulty said after horror in late May that he was in the car on the ridebehind his three children aged 13, 12 and 7 when it it suddenly "came completely off" and went "flying" into the seat he was in. It was like "something you see in the movies”, Kevin told Edinburgh Live. He said hischildren were shaken but “not too bad” considering what happened.

Kevin said: "Last night we were at these shows at Westerhailes Plaza, my three kids were on the Waltzers with myself and Brooke in car behind. Then the unthinkable happened. Going FULL PELT (not slowing down) their car came completely off and then went flying into our car.

“It then smashed about the place crashing into the side off the track, thankfully there was a heavy large speaker that they collided with or they would have been through the whole thing and then the ending would have been a completely different story, a thought I can't stop thinking about.

"The shows continued to go (not the Waltzers) but place should have been shut down for a full inspection. It was like something you see in the movies and my kids are very very lucky that they managed to get out of this still walking."