In recent weeks, there have been numerous drone sightings near the country's offshore oil and gas platforms.Customs officers reportedly located two drones and numerous electronic storage devices during a routine check at the border crossing in Storskog, the only border crossing between Norway, a NATO member, and Russia.Prosecutor Anja Mikkelsen Indbjor told Norwegian broadcaster NRK that the Russian man is suspected of violating sanctions that were put in effect following Russia's invasion of Ukraine on February 24.Under the measure, Norway prohibits aircraft, including drones, operated by Russian nationals or companies "to land on, take off from or fly over Norwegian territory."While Russia has not been blamed for the blasts, it has been excluded from partaking in the official investigations being carried out by the Danes and the Swedes."