With Danish help, the US intelligence service NSA has not only spied on Swedish leading politicians.
They have also, via the Danish military intelligence service, intercepted fiber cables that run through Denmark to spy on top politicians and high-ranking officials in Germany, France and Norway.
According to sources to Danmarks Radio, German leading politicians from both the Christian Democratic CDU and the Social Democratic SPD have been intercepted.
German Chancellor Angela Merkel, German Federal President Frank-Walter Steinmeier and former Finance Minister Peer Steinbrück are among the named politicians that the NSA, with Danish help, purposefully spied on.
Secret investigation
The information comes from a secret investigation and internal report with the code name "Dunhammer" which has analyzed the years 2012 and 2014. The investigation was made within the Danish intelligence service Forsvarets Efterretningstjeneste (FE).
For several months, Danmarks Radio has had meetings with nine sources who have had access to classified information from the Danish intelligence service.
All information is confirmed by several independent sources.
Exactly who was tapped when we do not know.
Through the editorial staff's international cooperation, SVT has asked the German, French and Norwegian governments about espionage.
The German and Norwegian governments announce that the information for them is new, while the French government refrains from commenting.
Merkel: Did not know about the interception
German Federal President Frank-Walter Steinmeier writes that he "has no knowledge or memory" that he may have been monitored by the Danish intelligence service.
Angela Merkel writes via her spokesperson that she did not know about the interception via Denmark but "first became aware" of the interception information "through your questions".
The spokesperson adds that Merkel's comment is "no statement as to whether the facts are correct or not".
Peer Steinbrück has, among other things, been German Minister of Finance and Deputy Chairman of the German Social Democrats SPD.
When SVT's partner asks him what he thinks about the fact that he has been intercepted by the NSA via Denmark, he says that this is the first time he has heard of this.
-That friendly intelligence services eavesdrop on and spy on leaders in other countries is quite grotesque.
From a political perspective, I think this is a scandal.
-In itself, I personally have nothing against the activities of the Western intelligence services.
But that they are targeting their own, it is really absurd, says Steinbrück.
Norway's Minister of Defense comments
The Norwegian Minister of Defense Frank Bakke-Jensen says that he talked to his Danish colleague last autumn about the surveillance that then emerged.
But when it comes to the new information, he has not been informed - we have "not received anything concrete about the matter at all", he says.
After the interview, Bakke-Jensen was contacted by the Swedish Minister of Defense and says that they both take "the allegations that emerge seriously".
SVT has applied to the NSA and the Danish intelligence service for an interview without results.
The Danish Minister of Defense writes in a statement that the Danish government can not speculate on media reports, but adds that systematic interception of close allies is "unacceptable".
The revelation of "Operation Dunhammer" has been led by Danmarks Radio and is a collaboration between newsrooms on SVT, NRK, Süddeutsche Zeitung, Le Monde, WDR, NDR.