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ROCK RIVER TOWNSHIP, Mich. (AP) — Authorities have identified two people killed when their snowmobiles collided on a trail in Michigan’s Upper Peninsula.

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The Alger County sheriff’s office says 21-year-old Douglas Show of Mill Run, Pennsylvania, and 54-year-old John Shadian of Kenosha, Wisconsin, died Monday night in Rock River Township.

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Show and Shadian were thrown from the snowmobiles and pronounced dead at the scene after crashing head-on. An investigation reveals that excessive speed is believed to be the cause of the accident.

Rock River Township is southeast of Marquette.

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