Mr. Van Aiken made a phone call just before his death. He ordered the Danish guys to the Norwegian farm.
btw: a possible explanation for the two Russians with the package is the following:
Mr. Cold (Jonathan's and Sean's father) collected the evidence about the plane crash and the involvement of his colleague, Olyphant in it, and Mr. Cold was the one who created the package. Dunois, Olyphant and Marquet killed Mr. Cold, but didn't get the package, only some information about the package being en route. They catched one Russian, killed him, but no package. Note the facts: the killed Russian knew Mr. Olyphant's name, and said that the "truth is too dangerous" about the package's way.
What does this mean?
The Russian man knew, that the package was sent by Mr. Cold to his son, Jon! But the "truth is too dangerous", because the Russian guy knew that Olyphant and Mr. Cold do know each other, but officially Olyphant shouldn't know about the package. Which means that if he reveals that the package is sent to Jon, it'd mean a big trouble for Mr. Cold. (Too bad that Mr. Cold was already killed, but the Russian guy didn't know this)
Olyphant found out where Jon is (note Sean's words later: "Jon, to get your phone number was a matter of national security"), informed Marquet, (mis)ordered the Russians to the cottage. And as Marquet informed Oyphant about hiring Jon, Olyphant had no choice but made the Russian's tongue cut out, to prevent that the Russians tell the story to Jon.