Mack, Colo. (AP) Investigators say two men were killed when a single-engine plane crashed near the Colorado-Utah border.

Garfield County, Colo., sheriff's spokeswoman Tanny McGinnis said Monday the victims are Charles Landry of Houston, born in 1947, and Steven or Stephen Bartlet of Green River, Wyo., born in 1958.

McGinnis says they were the only people on board. It's not yet clear which man was flying the plane.

A motorist found the wreckage of the four-seat Grunman Cheetah on Sunday in Mack.

National Transportation Safety Board investigators are expected to take over the investigation on Monday.