WASHINGTON (Sputnik) — The trip is scheduled from October 25-November 3.
"[Sewall will] meet with women and girls who had been captured by Boko Haram to learn about their unique challenges returning and reintegrating into society," the release stated on Monday.
Sewall’s trip, which includes stops in Nigeria, Chad and Cameroon, is focused on countering violent extremism in the region and issues of stabilization and humanitarian assistance, the release explained.
On October 12, Boko Haram released 21 girls from captivity following negotiations with the Nigerian government. The girls were among the 276 "Chibok schoolgirls" that the group kidnapped in Nigeria’s Borno State in 2014.
Boko Haram first launched attacks northeast Nigeria in 2009, and later expanded into Niger, Cameroon and Chad before pledging allegiance to the Daesh last year. The attacks have displaced an estimated 2.4 million people since 2009, according to the UN refugee agency.