About 30 of these incidents have been reported, with the numbers increasing over the last 10 days, said Lt. Mark Bennett of the Ottawa County Sheriff’s Department.
The suspects worked primarily between midnight and 6 a.m., targeting the area of Robbins Road south to M-45 and Lakeshore Drive to the east side of Grand Haven Township.
Bennett said most of the vehicles were unlocked, and were parked in driveways next to homes or businesses.
Several thousand dollars worth of electronics were stolen, along with one handgun, he said.
The Sheriff’s Department is working with other agencies on similar crimes.
There are no suspects at this time, Bennett said.
Anyone with information is asked to call Silent Observer at 1-877-88 SILENT (745368).