Aïn Sebaâ – Hay Mohammadi is a prefecture of eastern Casablanca, in the Casablanca-Settat region of Morocco. The district covers an area of 26.7 square kilometres and as of 2004 had 407,892 inhabitants.SubdivisionsThe district is divided into three arrondissements:Aïn SebaâHay MohammadiRoches Noires