Most of the would-be immigrants are said to be from Iraq. Prosecutor Magnus Berggren says the international trafficking ring has also operated from Belgium, Bulgaria, Egypt, Jordan, the Netherlands, Syria, and Turkey.
The six charged on Monday in Uppsala District Court are among nine people arrested in police raids around the country last May. Falsified travel documents, tools to make documents, and computers were seized during the operations. The suspects, all naturalized Swedish citizens aged between 40 and 57, risk up to six years in prison if convicted.
The trial is scheduled to begin Thursday and is to end in late April.