Europol's director says Europe is facing security challenges that include a spike in cybercrime and the return of fighters from the so-called Islamic State.
The European police agency estimates that nearly 5,000 Europeans have gone to Syria and Iraq to join the Islamic State group, and about a third are believed to have returned.
The agency launched a report on the threat of serious and organized crime on Thursday.
Europol Director Rob Wainwright told The Associated Press: "We've seen more coming back ... and that's going to pose an obvious security challenge in terms of their reintegration into our societies."
This content appears as provided to The Globe by the originating wire service. It has not been edited by Globe staff.