A man was killed following a police chase when he was run over by an officer who was chasing him, Harris County Sheriff's deputies say.

The man was first spotted Saturday night going extremely fast with his headlights turned off along the North Sam Houston Tollway near the John F. Kennedy Boulevard Bush Intercontinental Airport exit about 10:15, but when a deputy tried to get the man to slow down and pull over, the driver then sped off, leading the deputy on a chase, east and then southbound on the Tollway, past West Lake Houston Drive.

The chase resulted in both vehicles racing along the Beltway at speeds between 90 and 120 miles per hour.

The driver exited and tried to make a turn but lost control and slammed into a stand of trees, according to the Sheriff's Department report.

A second deputy joined the chase and got up close to the suspect at the accident site, driving up quickly as the suspect tried to get away by jumping out of his smashed vehicle.

But in jumping out, he was also jumping into the path of the officer's vehicle, and in the muddy water the deputy was unable to stop, hitting the suspect head-on and pinning him under the law enforcement vehicle.

That suspect was later pronounced dead after Emergency Medical Services attempted to revive him once he was rescued from under the vehicle.

The Sheriff's office is handling the investigation, which begins with trying to find out why the suspect tried to get away from officers in the first place.

Jimmy Barrett