OKLAHOMA CITY - The Oklahoma Highway Patrol is expected to release dashboard-camera video that depicts a car chase and deadly gun battle with a man suspected in a series of violent crimes across the state.

Capt. Paul Timmons says the video will be released Wednesday at a press conference at the Department of Public Safety's headquarters in Oklahoma City.

Troopers shot and killed 38-year-old Michael Vance on Sunday near the western Oklahoma town of Leedey, 210 kilometres northwest of Oklahoma City.

Vance was suspected in a string of violent crimes across the state, including the killing of two relatives and the shooting of three law enforcement officers.

He was the subject of a weeklong manhunt. Authorities believe Vance had been camping in a remote area near the western Oklahoma town of Hammon.