Nouakchott, Mauritania (PANA) ? The Mauritanian anti-slavery NGO, called "Initiative for the resurgence of the abolitionist movement (IRA)", has denounced the arrest of eight peasants in the region of Kiffa (600 km East from the capital Nouakchott, in the administrative district of Guerou), demanded their release and end to "slavery", according to a press statement from the NGO here Friday.