The 16 were citizens of Sweden, Slovakia, Serbia-Montenegro, Syria and Bosnia-Herzegovina, and at least one of them was a woman, according to the charge sheet.
In March and April, two Slovakian women, aged 20 and 28 were allegedly recruited in their country and brought to Sweden, where they were sold for 7,000 kronor (around 870 dollars) and 5,000 kronor respectively by two of the accused.
According to the charges, the women were forced to prostitute themselves. Almost all the money they made was taken by the accused, and their passports were confiscated. Swedish prosecutor Magnus Elving told AFP news that wiretaps had helped police intervene in the affair.