As many as 10 people, including children, were shot and wounded at a city-run water park near Detroit on Saturday evening, police said, calling the incident random gunfire.
Local media WXYZ Detroit reported that the suspect has died by suicide after they were tracked to a residence in Shelby Township.
A man got out of a vehicle in front of Brooklands Plaza Splash Pad park, in Rochester Hills, Michigan, about 5 p.m. (2100 GMT) and fired about 30 shots from a 9mm semiautomatic Glock, reloading several times, Oakland County Sheriff Michael Bouchard told a press conference.
It was not immediately clear if there were any fatalities, said police, who had initially reported five people shot.
Rochester Hills is about 30 miles (50 km) north of Detroit. The neighboring community Oxford Township, also in Oakland County, was the scene of a 2021 mass school shooting where student Ethan Crumbley, then 15, killed four students and wounded six other students and a teacher at Oxford High School.
"It's a gut punch, obviously, for us here in Oakland County," Bouchard said. "We've gone through so many tragedies, you know. We're not even fully comprehending what happened at Oxford."
Michigan Governor Gretchen Whitmer said on X, "I am heartbroken to learn about the shooting in Rochester Hills."
With Reuters inputs