Daycares in Sweden have started fitting children with GPS and other locating devices to keep track of kids during excursions.

The Swedish children wear vests fitted with tracking devices that daycare staff can track on a screen, the Associated Press reports.

GPS devices are increasingly being used to keep track of children, although it is still unusual for them to be used in a daycare setting.

"Certainly, GPS is already being used on kids — many of them delinquent," the Toronto Globe and Mail reports. "In Florida earlier this year, GPS was being piloted as a way to keep track of, and presumably motivate kids who habitually play hooky."

But there are growing concerns about the ethical implications of monitoring children.