18 of the 21 freed Chibok girls are nursing mothers

More details have emerged following the release of 21 Chibok girls today. The girls were swapped for Boko Haram prisoners

"The release of the girls...is the outcome of negotiations between the administration and the Boko Haram brokered by the International Red Cross and the Swiss government," a presidency statement said. "The negotiations will continue."

According to Sahara Reporters, 18 of the freed 21 Chibok girls have given birth while in captivity .