Children pose in a classroom at the Friendship Primary school in Zinder on June 1, 2012.
CNN  — 

After being held for more than three years, 82 Chibok schoolgirls were released in a swap between terrorist group Boko Haram and the Nigerian government.

The government freed five top Boko Haram commanders in the deal, said Sen. Shehu Sani, who was part of the negotiating effort.

However, more than a hundred girls are still being held.

In April 2014, more than 270 girls were kidnapped by Boko Haram militants in the middle of the night from their boarding school in Chibok, Nigeria.

Nigeria’s missing girls: A glimpse of the stolen

The kidnapping sparked protests around the world and the social media campaign #BringBackOurGirls.

Several organizations are helping young women around the world to receive an education in a safe environment. You can help by clicking the take action button below: