Students at UNAM, along with other Mexico City universities, mobilized in what has come to be called Mexico 68, protests against the 1968 Mexico City Olympics, but also a whole array of political and social tensions. During August 1968, protests formed on the main campus against the police actions on the main campus and in the center of the city. The protests grew into a student movement that demanded the resignation of the police chief, among other things. More protests followed in September, gaining frequency and numbers. During a meeting of the student leaders, the army fired on the Chihuahua building in Tlatelolco, where the student organization supposedly was. In the Tlatelolco massacre, the police action resulted in many dead, wounded, and detained. Protests continued on after that. Only ten days later, the 1968 Olympic Games opened at the University Stadium. The university was shut down for the duration.