Gardai in Milford have made an appeal to the parents who allow their children to drive on public roads to desist immediately.
It follows a number of reports in the Churchill/Trentagh area.
A spokesperson said “We cannot emphasise enough how dangerous this is to the young inexperienced drivers and other road users.”
The warning also stressed that quads are not permitted on public roads.
The warning was issued before the new measures with restricts the movement of ALL non-essential travel.