Clashes between the government and protesters culminated in the Tlatelolco massacre in October 1968, a few days before the 1968 Summer Olympics were held in Mexico City.
Pertikaian antara pemerintah dan pengunjuk rasa berpuncak dalam pembantaian Tlatelolco pada Oktober 1968, beberapa hari sebelum Olimpiade Musim Panas 1968 yang diadakan di Mexico City.