Why did the human rights organizations criticize Morocco?

The European Union says thirty thousand Sub-Saharan Africans are waiting in Morocco and Algeria to cross illegally into Europe. [23] Morocco has been criticized by human rights organizations after it was reported that its security forces had dumped large numbers of these would-be migrants in the desert and left them to fend for themselves.  Meanwhile, in the Moroccan capital, Rabat, demonstrations have been taking place against the treatment of those who’ve been trying to enter the Spanish enclaves of Melilia and Ceuta, [24] where last week several people were killed in clashes with Moroccan troops.