By Frederik Pleitgen and Mohammed Fadel Fahmy, CNN
The Sinai desert is a hub for people trafficking. Many of the refugees from sub-Saharan Africa who get smuggled through here get tortured and blackmailed in the process.
Bedouin gangs – instead of trafficking the refugees straight into Israel - often hold them captive, torture them and force relatives into paying ransoms for their release.
The ordeal is exceptionally bad for women. Many of them are raped by the traffickers and some become pregnant.
I met Tegisti Tekla from Eritrea in a shelter of the African Refugee Development Center in Tel Aviv. She eventually made it to Israel after a long and treacherous journey via Sudan and the Sinai.
"They are cruel people," she said as tears ran down her cheeks. "They are criminal people and they don't have the human sense like us. I screamed that I am virgin but they just don't care at all about you."
Tegisti says the first time she was raped the people traffickers selected her and another female refugee from a larger group and took them away saying they would have to make coffee for the smugglers. There would be several similar incidents during her treacherous trek across the Sinai.
When Tegisti finally made it to Israel she found out she was pregnant and decided to have an abortion.
"I would suffer all my life," she said. "I would have a son or a daughter without a father. That's why I decided not to have the baby."
The African Refugee Development Center, an aid group that provides food and shelter, says many women who make it to Israel are pregnant from rape and many ask for an abortion. Only a very few have the babies who were fathered by people traffickers.
Diddy Mymin Kahn, an aid worker at ARDC, says the aftermath is like being violated again for victims who are often stigmatized by their communities instead of receiving the help they require.
"Women say they will not get any support from their community if they are victims of rape so they will keep completely silent about it so that they are not ostracized. Even more so if they are pregnant," Mymin Kahn told CNN.
Meron Estefanos, an Eritrean-born Swedish activist and journalist who works out of Stockholm, is often in contact with women who were held by people traffickers in torture camps.
She says she frequently hears stories of rape and other sexual abuse.
"In some cases babies are even born in the torture camps," Meron told me. "Then the people smugglers sometimes tell the women that they have to pay double the ransom because there are two people now."
A tragic case was brought to our attention by the New Generation Foundation for Human Rights, an aid organization operating out of the town of El Arish in Northern Sinai that tries to help the African refugees stranded there.
The group provided us with horrific pictures of a baby girl named Cecilia, who they say was born inside a Bedouin torture camp after her mother had been raped there countless times.
The organization says that when the mother was unable to pay the ransom demanded, the smuggler who had fathered the child burned the baby's head all the way down to the skull bone. After the mother was released, Cecilia was finally treated at a hospital in Cairo.
While some Bedouins are trying to crack down on the people smugglers in their ranks, the business remains lucrative, with ransoms sometimes topping $60,000 to get a refugee freed.
It is not clear how many women have become pregnant after being raped in Bedouin people trafficking camps, but aid groups say they believe those that come forward and talk are by far the minority and most simply try to have an abortion in secret.