Houston Police are working to figure out why a driver lost control of a car, causing a major accident Thursday night.

It happened on the inbound lanes of the North Freeway and W. Patton in north Houston around 11:30 p.m.

Investigators said the driver lost control, veered off the freeway and couldn't stop before the car flipped and ended up on its roof.

The driver was taken to the hospital in stable condition.

Houston Police are going to test the driver to see if alcohol played a role in the crash.