Dutch police have dismantled a large international investment fraud network that allegedly tricked tens of thousands of people into investing in fake cryptocurrency schemes.

Authorities said Wednesday that the group operated like a legitimate international business since at least 2021, running about two dozen call centers across several countries and employing more than 700 people who posed as professional financial advisers.

The operation allegedly generated more than €100 million ($114 million) a month by convincing victims to invest in bogus trading platforms after spending weeks or even months building relationships with them over the phone and online.

At the center of the investigation is a 46-year-old man with Israeli and…