In recent months, dozens of pregnant women, mostly Nigerians, have disappeared from Dutch asylum shelters. There are serious concerns about the plight of the women and their babies. It is unknown where they go, where they give birth and what happens to the babies. The Expertise Center explicitly states that it is "seriously concerned" about their fate. "It is not inconceivable that both the women and the newborn children are or become victims of human traffickers, illegal adoption or voodoo rituals".