In one case, however, the gang did manage to get a person to transfer a sum of money, they added.
As well as foreigners and business leaders, the gang also tried their luck with Belgian families close to the country’s royals.
Then in a fresh wave of activity this month, they sent out invitations to Belgian business executives for a video interview, trying to pass themselves off as the king.
“The images in this video interview were probably generated by artificial intelligence,” said prosecutors.
Some executives were honoured with invitations to entirely fictitious gala dinners, with requests to pay sponsorship fees for the non-existent event.
Federal prosecutors said they were investigating the attempted frauds with the help of specialist teams in the federal police.
-Agence France-Presse