Romanian and German police search several companies suspected of links to the alleged fraud involving Nato ship services. (EPA Images pic) OSLO: Norwegian police said Wednesday that they had arrested five people as part of an investigation into aggravated fraud against a Nato agency.

The people, who were arrested in the region of Bergen in western Norway, are suspected of "over-invoicing" the NATO Support and Procurement Agency (NSPA) for services provided to Nato ships in Norwegian ports between 2021 and 2025.

"The overcharges are more than €1 million (US$1.12 million)," police said in a statement.

"Defence sector budgets are increasing worldwide, which entails an increased risk of economic crime.