Despite further deterioration of the economy, the severe food shortages, and energy and fuel restrictions during the 1980s, only limited signs of unrest were observed, thanks to the strict surveillance and repressive measures of the internal security forces. But in November 1987, a massive protest occurred in the city of Brasov. Some 30,000 workers staged a violent protest against harsh living conditions and the prospect of another winter of food and energy shortages. The spontaneous demonstration began at a tractor and truck plant and spread into the streets. Joined by onlookers, the workers chanting anti-Ceausescu slogans marched on the city hall and ransacked the mayor's office. The protest was broken up by militia and the Securitate, and a number of workers were arrested. Though it was crushed, the Brasov protest represented a rallying point for the possible emergence of an organized opposition.