A woman has died while riding an amusement park roller coaster in North Texas.

Texas Giant roller coaster (KDFW TV)

Police records show the incident happened just after 6:30 p.m. Friday at Six Flags Over Texas in Arlington. A statement issued by park spokeswoman Sharon Parker says the woman died while on the Texas Giant roller coaster. Witnesses say she fell.

In Ohio, a boat on a thrill ride at an amusement park that bills itself as the best in the world accidentally rolled backward down a hill and flipped over in water when the ride malfunctioned Friday, injuring all seven people on it.

The Cedar Point amusement park says operators stopped the Shoot the Rapids water ride after the accident, which occurred on the ride's first hill. Park police officers, medical technicians, ride operators and park visitors waded into the water and helped the passengers off the boat.

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