Amsterdam, Muharram 14, 1436, November 07, 2014, SPA -- Europol says 17 people have been arrested in an international crackdown on underground websites selling illegal drugs, AP reported. In a statement, the European policing agency said Friday that it coordinated raids a day earlier together with U.S. law enforcement agencies, who Thursday announced the arrest in San Francisco of a man accused of running the "Silk Road 2.0" online drug bazaar. Europol said that in addition to the Silk Road site, several other marketplaces were seized, netting $1 million (800,000 euros) in digital currency and $225,000 worth of cash and drugs. Silk Road and similar websites are not visible on the open Internet; they can only be accessed with special browsers that encrypt web traffic. Buyers and sellers trade using digital currencies, usually Bitcoin. -- SPA 15:11 LOCAL TIME 12:11 GMT www.spa.gov.sa/w