European countries have pressed the US and Denmark over reports the two worked together to spy on top European politicians, including German Chancellor Angela Merkel.
Danish broadcaster DR said Denmark’s Defence Intelligence Service (FE) collaborated with the US National Security Agency (NSA) to gather information from 2012 to 2014.
Mrs Merkel is among those demanding answers. Both FE and the NSA are yet to comment.
Denmark has not confirmed nor denied allegations.
Mrs Merkel said she agreed with Mr Macron’s comments, but that she was also reassured by the Danish defence minister’s condemnation.
Intelligence was allegedly collected on other officials from Germany, France, Sweden and Norway. Those nations have also called for explanations.
Norwegian Prime Minister Erna Solberg told public broadcaster NRK: “It’s unacceptable if countries which have close allied co-operation feel the need to spy on one another.”
The alleged set-up, said in the report to have been codenamed “Operation Dunhammer”, allowed the NSA to obtain data using the telephone numbers of politicians as search parameters, according to DR.
DR interviewed nine sources, all of whom are said to have had access to classified information held by the FE.