Niger: Operational Update, April 2021 Format Due to rising insecurity in Maradi region, the number of internally displaced persons has raised sharply and reached 17,262 persons. The number of IDPs in Tillabery and Tahoua region has increased with 47% over the last 12 months. At least 138,229 persons are internally displaced. With the support of the EU, UNHCR has constructed 2,830 social houses for the most vulnerable refugees and Nigeriens in Diffa region KEY INDICATORS 3,361* Number of vulnerable persons in detention in Libya that have been evacuated to safety in Niger since November 2017. 581,815* Persons who have fled their home countries or are internally displaced and living in Niger.