Denmark’s National Police Commissioner Thorkild Fogde told CNN Tuesday that these were not amateur or hobby drones, but rather large drones that likely had a capable operator. ET) but some delays and cancellations were still expected, an airport spokesperson said early Tuesday. In Norway, the airspace over Oslo Airport was closed for around three hours Tuesday morning due to a separate drone sighting. Oslo Airport reopened around 3:22 a.m. local time (8:22 p.m. In an earlier incident in Oslo on Monday, police arrested two foreign nationals for flying drones over a restricted area.