Five people have been arrested in Norway as authorities investigate suspected fraud and bribery involving logistical services supplied to military vessels operating on behalf of NATO member countries.

The coordinated investigation, announced by the European Union's criminal justice agency Eurojust on October 14, also involved searches in Germany and Romania.

Investigators suspect that an unidentified company and its subcontractors submitted fraudulent invoices for services provided during military ship visits to ports in northwestern Europe.

The disputed contracts involved shore-based support, including services required by naval crews and vessels during port calls.

Eurojust said the suspected scheme caused losses estimated at approximately €1 million, although investigators have not established the final amount.

Authorities are also examining allegations that intermediaries offered bribes to public officials to secure favorable treatment from NATO's Support and Procurement Agency, which helps member states purchase defense equipment, supplies and logistical services.

The international investigation involves cooperation between law enforcement and judicial authorities in several European countries.

The accusations remain under investigation, and the arrests do not establish the guilt of those detained.

Why it matters: NATO's military readiness depends on reliable procurement and logistical supply chains. Alleged corruption in naval support services raises questions about contract oversight, transparency and the integrity of systems that help allied forces operate across Europe.