GRAND MARAIS, Mich. (WJMN/AP) — Authorities say a wildfire burned about 6 acres at and near Pictured Rocks National Lakeshore in the Upper Peninsula.

A U.S. Coast Guard vessel out of Station Marquette spotted the fire near Twelvemile Beach campground around 3 p.m. Monday.

Fire on state and national lands near Pictured Rocks National Lakeshore. Photo courtesy of Pictured Rocks National Lakeshore.

Michigan Department of Natural Resources firefighters responded with help from Burt Township Fire and Pictured Rocks park rangers. The six acres that burned include national park lands and state forest.

“Thank you to all our agency partners who reported and helped us keep this fire under control,” Chief Ranger Joseph Hughes said in a statement. “I would like to remind all park visitors to recreate safely. Drivers and visitors should slow down and use caution in the area.”   

An investigation into what started it is still ongoing. Firefighters were expected in the forest Tuesday to conduct cleanup.

Smoke and limited visibility may affect the area in the oncoming days near Twelvemile Beach campground and along Highway 58 near Kingston Lake campground.

Picture of firefighter at fire on state and national lands near Pictured Rocks National Lakeshore. Photo courtesy of Pictured Rocks National Lakeshore.