Louth Rural Neighbourhood Policing Team has been informed that dog walkers are allowing their pets off their lead, allowing them to roam freely on to the North Cotes Airfield.
A police spokesman said: “As most will appreciate, this presents a great risk to planes that are landing at the location.
“Please ensure that you do not allow your dog to roam onto the Airfield. This is a restricted area for the safety of all. Thank you.”
• Call Lincolnshire Police on 101 to report any non-emergency incidents.