Men of the Nigerian Police Force have arrested former Minister of Education, Oby Ezekwesil who is also the convener of the BringBackOurGirls group.
She was arrested on Tuesday alongside other members of the group at the Unity Fountain in Abuja.
In series of posts on her Twitter handle, @obyezeks, Ezekwesil said those arrested include herself, Aisha Yesufu, Maureen Kabrik, Jeff Okoroafor, and four others.
She said the officers have refused to tell them why they were arrested.