The 17-year-old South Sudanese refugee finally managed to escape after three months as a prisoner in a Cairo apartment where she was repeatedly gang raped, only to realize that she had become pregnant by one of her attackers.

She is one of a growing number of African migrant and refugee women in the Egyptian capital who report abuse, in what rights groups say has become an epidemic of sexual violence that has worsened in recent months.

Reuters met five women, from Sudan, South Sudan and Somalia, at a community center in Cairo, each of whom said she was a victim of violent sexual assault.