Police in Denmark say four suspected ISIL recruits were arrested on Thursday at different addresses near Copenhagen and a haul of ammunition and weapons found.
The raids come as neighbouring Sweden charged a 20-year-old man with terrorism for allegedly building a suicide bomb with the intent of staging an attack there.
All four suspects detained in Denmark are accused of having violated the penal code by allowing themselves to be recruited by ISIL in Syria to commit terrorist acts, Chief Superintendent Poul Kjeldsen told reporters, adding that further arrests can’t be ruled out.
More than 125 people from Denmark are believed to have joined ISIL after going to Syria and Iraq.
Danish authorities have been on high terror alert since two people were killed in shooting attacks at a free speech event and a synagogue in Copenhagen in February last year.