According to Per Annar Holm, Aftenposten's crime correspondent, the two men accused of organising an attempt to smuggle 250kg of hashish from Denmark to Sweden are known accomplices of David Toska and Metkel Betew, the masterminds of the famous robbery of a cash depot run by Norway's Nokas company.
"The police are quite convinced that those who have not been caught for Nokas are making the Nokas money to grow while their friends are in jail," he said.
The organisers of the 2004 heist, which was turned into a film in 2010, got away with 57m kroner ($9m), of which 51m kroner is still missing.
Toska was arrested in Malaga, Spain, in 2005, and was sentenced to 19 years in prison the following year after admitting to his involvement in the robbery.
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Police believe that the smugglers who were caught by Danish police in January, outside the Jutland port of Aalbæk, made as many as seven smuggling trips a year to Norway.
The case is coming up for trial in the Danish city of Hjørring in the New Year.