In recent years, women who have become trapped in sex work in the Niger city of Agadez have found a new way to blot out the pain of what their lives have become. Crack cocaine.
Agadez has long been a transit point for people trying to pass through north Africa and across the Mediterranean to Europe. Now the Nigerien city is a hub for the flow of drugs heading towards Europe too.
For those such as Azizou Chehou, trying to provide support for the increasingly desperate migrants coming through the city, the impact of the greater availability of cocaine on the streets is clear. Agadez is in the grip of an addiction crisis and its biggest victims, says Chechou, are female migrants.