They had with them a large amount of cash and watches to a value of more than SEK 270,000, which have now been seized.
It is the second day in a row that people have been arrested at Arlanda with a six-figure amount of cash on them.
And a few days ago, a man in his 60s was stopped at the airport with gold bars worth SEK 1.7 million in his luggage.
Corrected: In an earlier version, there was an incorrect information about the value of the fittings.