The identity of the Russian male was not made public, only that he was detained on Tuesday with three passports in his luggage, two Russian ones and one Israeli, according to local Norweigan media.

Authorities also seized four terabytes of data, some of it encrypted.

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.