COLLINSVILLE, Okla. (AP) - Two men killed in the crash of a small airplane in a rural agricultural area north of Tulsa were friends on the ground as well as in the air.

Aubrey Pollock, a mutual friend of crash victims Harvey Hazelwood and Oklahoma Highway Patrol Capt. Larry Jackson, says they were like brothers.

Hazelwood and Jackson lived in a cluster of about 20 homes at Airman Acres, a 2,650-foot airstrip just southwest of Collinsville. They were killed on Sunday when the twin-engine plane they were in crashed in a pasture.

Leah Yeager, a senior air safety investigator with the National Transportation Safety Board, says the Cessna 320 went down about a mile from the airstrip where it took off.

A spokesman with the state Medical Examiner's Office says the victims died of blunt force trauma.