The trafficking of animals, illegal logging and mining and the dumping of hazardous materials diverts hundreds of billions of dollars every year to the financial accounts of organized crime groups, a new study published on Monday by Michigan State University found.

Spying on their mobile phones, GPS devices and tablets, police from several European countries broke up an international tuna trafficking network that allegedly handles 2.5 million kg of tuna annually and arrested 79 of its suspected members, a Europol press release said Tuesday.