It happened at Down South Offroad Park, just west of F.M. 2100 on Old Beaumont Highway in Crosby.
According to Harris County Sheriff's Office deputies, a four-seater Razor all-terrain vehicle had four people on it. They were going up an embankment inside the park when the ATV flipped backward, officials said.
Investigators tell us the two people in the back were able to jump off, but the two people in the front were trapped beneath the vehicle.
The victims have not been identified. Officials have only confirmed that a man and a woman died. The man was killed at the scene and the woman died on the way to an area hospital.
We will continue to bring you updates on Eyewitness News and abc13.com as new details are released.