The congested Ngala camp for internally displaced persons in Borno State, northeast Nigeria, where a Boko Haram attack in early September killed at least seven people, April 2017.

The congested Ngala camp for internally displaced persons in Borno State, northeast Nigeria, where a Boko Haram attack in early September killed at least seven people, April 2017.

© 2017 Jane Hahn/Washington Post