Shrimp peeled by slaves is ending up in U.S. supermarkets, restaurants and the supply chains of major seafood brands and pet food companies, according to an ongoing investigation by the Associated Press. Reporters found nearly 100 Burmese migrants working in the Gig Peeling Factory in in Samut Sakhon, Thailand. The factories, which are actually sheds, hold 50 to 100 people, many of whom are locked inside and forced to work for little or no pay.

According to the report:

Last month, AP journalists followed and filmed trucks loaded with freshly peeled shrimp from the Gig shed to major Thai exporting companies and then, using U.S. customs records and Thai industry reports, tracked it globally. They also traced similar connections from another factory raided six months earlier, and interviewed more than two dozen workers from both sites. 

The AP’s investigation has freed more than 2,000 trapped fishermen and led to a dozen arrests, millions of dollars’ worth of seizures and proposals for new federal laws.