GOMA, Congo -- Gold is now the primary source of income for armed groups in eastern Congo, and is ending up in jewelry stores across the world, according to a report published Thursday by the Enough Project.

"The essential revenue for armed groups comes from gold today. Of course there are other sources like logging, but gold has become the primary source for groups like the FDLR," said Fidel Bafilemba, Enough's researcher in eastern Congo.