The covert operations which are said to have been codenamed “Operation Dunhammer” allowed the American’s to obtain data using the telephone numbers of top-ranking politicians, according to Danmarks Radio.
One of the bloc politicians targeted was the German Social Democratic Party’s Peer Steinbrück.
A furious Steinbruck told France24: “The fact that friendly intelligence services wiretap and spy on top representatives of other countries is quite grotesque!”
The German added: “It’s a small indication that they lead quite a life of their own.
“So politically I think it’s a scandal.”
According to the report the US tapped into undersea internet cables by taking advantage of a surveillance collaboration with the Danish government.
Calls, texts, internet searches, and chats were all accessible to US secret services with the help of the Danes.
But in a dramatic new turn of events, whistleblower Edward Snowden called out US President Joe Biden for his “involvement in the scandal when he was Vice President under Barack Obama.
Mr Snowden tweeted how US President Joe Biden was “deeply involved in this scandal the first time around”.
He added: “There should be an explicit requirement for full public disclosure not only from Denmark but their senior partner as well.”
Denmark’s Defence Minister Trine Bramsen told Danmarks Radio: “Systematic wiretapping of close allies is unacceptable”.