Men from Senegal and Niger held at the police-run migrant detention center in Le Ksar district, Nouakchott, Mauritania, September 2, 2023. Multiple West and Central African migrants detained at the Ksar center between 2020 and 2024 described mistreatment including insufficient food, overcrowding, unsanitary conditions, and being forced to sleep on the floor. In July 2025, the government said the Ksar center was temporarily closed for “rehabilitation” to improve conditions.
© 2023 Lauren Seibert/Human Rights Watch