The FBI have arrested several people suspected of involvement in running Deep Dot Web, a website for facilitating access to dark web sites and marketplaces.

Two suspects were arrested in Tel Aviv and Ashdod, according to Israel’s Tel Aviv Police, which confirmed the arrests in a statement earlier in the day. Local media first reported the arrests.

Arrests were also made in France, Germany and the Netherlands. A source familiar with the operation said a site administrator was arrested in Brazil.

Deep Dot Web is said to have made millions of dollars in commission by offering referral links to dark web marketplaces, accessible only at .onion domains over the Tor Network. Tor bounces internet traffic through a series of random relay servers dotted across the world, making it near-impossible to trace the user.

Its .onion site displayed a seized notice by the FBI, citing U.S. money laundering laws. Its clear web domain no longer loads.

Tuesday’s arrests follow an operation by U.S. and German authorities earlier in the week that took down the Wall Street Market, one of the largest remaining dark web marketplaces. Thousands of sellers sold drugs, weapons and stolen credentials used to break into online accounts.

Efforts to reach Deep Dot Web over encrypted chat were unsuccessful.

A spokesperson for the Justice Department did not have comment, while the FBI declined to comment. A spokesperson for the Israeli consulate in New York did not respond to a request for comment.