Drone sightings within the North Sea ‘occurred over months’

The unidentified drones seen flying close to Norwegian offshore oil and gasoline platforms reported earlier this week have occurred over a interval of “months.” That is what Amund Preede Revheim, who leads the investigation, instructed EUobserver in an electronic mail on Wednesday. “The occasions have occurred over months,” he stated, however declined to specify additional how far again the primary sightings have been made “for the sake of the investigation”.