The media and the press in particular played an important role in the dissemination and political and ideological confrontation that occurred in Chile in the sixties and seventies of the twentieth century. In this sense, El Mercurio newspaper, as the main representative of the hegemonic groups and liberal thinking, supported the 1973 coup. While the act of this medium is well known, it is relevant and necessary to take a look at the procedure that had other newspapers, but at regional or local scale. This paper gives a comprehensive overview of the actions taken by El Sur newspaper from Concepcion about the September 11, 1973, the level of information provided and the position adopted once the intervention military in the city of Concepcion occurred.