FARMERS and landowners in North Yorkshire have been warned to expect low-level helicopter patrols inspecting overhead power lines later this month.

Each year, the electricity distributor inspects about half its high voltage overhead network, checking for any damage or deterioration.

The first flight this year takes place on Monday with the exercise running though until September.

Approximately 120,000 poles and 10,000 kilometres of overhead line will be inspected.

For more information, phone the Northern Powergrid contact centre on 08450 707172.