Student and labour organisations left Oaxaca state late Wednesday en route to Mexico City to participate in another massive march Saturday. Demonstrations have been planned in nearly fifty cities across the country, to demand justice for the 43 missing Ayotzinapa students and and the resignation of President Enrique Pena Nieto. Social organizations in Mexico oppose the constitutional modifications related to free universal movement passed by the Chamber of Deputies. They say that the new legal framework seeks to limit protests, such as those held in recent weeks teleSUR.