CASS CITY, Mich. — Authorities are seeking help from the public identifying vandals who carved images into rock at Sanilac Petroglyphs State Park in Michigan.

The Michigan Department of Natural Resources says rock that includes the Sanilac Petroglyphs was vandalized with three images earlier this year. The original carvings at the Sanilac Petroglyphs were made hundreds of years ago and are sacred to Native American tribes.

The vandalism at the park about 85 miles (135 kilometers) north of Detroit includes images that appear to be mushrooms and a cat.

Sandra Clark, director of the Michigan History Center, says in a statement the vandalism is a “disrespectful act.” The Saginaw Chippewa Indian Tribe of Michigan partners with the state in interpreting the petroglyphs and says the original carvings are an important connection to the past.

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