Police say a group of bikers have been churning up tracks through the Island's plantations this week.
Officers say government forestry staff contacted them to report the group, who were on UK-registered enduro bikes in Slieau Whallian Plantation.
Although they were stopped by police, who spoke to them about their behaviour, the same bikes were later spotted in Arrasey Plantation and on private land nearby.
Officers are asking people to be more responsible using the plantations.
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