The “mayday” call was made to the Coast Guard at about 4 p.m. Thursday. The caller said they were boating on the river between 68th and 48th avenues in Polkton Township and “only advised that they were ‘going down,’” said Sgt. Matt Wildfong of the Ottawa County Sheriff’s Department.
The Coast Guard’s helicopter from Traverse City joined a county marine patrol boat in the search of the river.
“Deputies also spoke with fishermen along the bank of the river in the area, who all reported that they had not seen any boats on the river,” Wildfong said.
The incident remains under investigation by police and the Coast Guard.