Scores of girls and young women kidnapped from a school in Nigeria are being forced to marry their Islamic extremist abductors, a civic organization reported Wednesday.

At the same time, the Boko Haram terrorist network is negotiating over the students’ fate and is demanding an unspecified ransom for their release, a Borno state community leader said.

He said the Wednesday night message from the abductors also claimed that two of the girls have died from snake bites.

The message was sent to a member of a presidential committee mandated last year to mediate a ceasefire with the Islamic extremists, said the civic leader, who spoke on condition of anonymity because he is not authorized to speak about the talks.

The news of negotiations comes as parents say the girls are being sold into marriage to Boko Haram militants. The students are being paid $12 to marry the fighters, Halite Aliyu of the Borno-Yobe People’s Forum said. She said the parents’ information about mass weddings is coming from villagers in the Sambisa Forest, on Nigeria’s border with Cameroon, where Boko Haram is known to have hideouts.

“The latest reports are that they have been taken across the borders, some to Cameroon and Chad,” Aliyu said.

“Some of them have been married off to insurgents. A medieval kind of slavery. You go and capture women and then sell them off,” said community elder Pogu Bitrus of Chibok, the town where the girls were abducted.

Outrage over the failure to rescue the girls is growing and hundreds of women braved heavy rain to march Wednesday to Nigeria’s National Assembly to protest lack of action over the students. Hundreds more also marched in Kano, Nigeria’s second city in the north.

“The leaders of both houses said they will do all in their power but we are saying two weeks already have past, we want action now,” said activist Mercy Asu Abang.

“We want our girls to come home alive — not in body bags,” she said.

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A federal senator from the region said the military is aware of the movements of the kidnappers and the girls because he has been feeding them details that he has gathered on a near-daily basis.

“What bothered me the most is that whenever I informed the military where these girls were, after two to three days they were moved from that place to another. Still, I would go back and inform them on new developments,” Sen. Ahmad Zanna said.

Zanna said some of the girls are in Kolofata in Cameroon, about nine miles from the border with Nigeria. He said one of the insurgents had called a friend in Borno state to say that he had just got married and was settling in Kolofata. Zanna also said three or four days ago Nigerian herdsmen reported seeing the girls taken in boats onto an island in Lake Chad.