 On 27 June 1976, Montoneros guerrillas operating in the city of Rosario ambushed and destroyed two police cars, killing three police officers During the first few months of the military government, more than 70 policemen were killed in leftist guerrilla attacks.On 11 August 1976, urban guerrillas dressed like police officers intercepted and killed army corporal Jorge Antonio Bulacio, with two shots to the head and set fire to his military lorry belonging to the 141st Headquarters Communications Battalion with a Molotov cocktail bomb.On 4 January 1977, a female guerrilla (Ana María González) from the Montoneros movement shot and killed Private Guillermo Félix Dimitri of the 10th Mechanized Infantry Brigade while he was on roadblock duty outside the Chrysler factory in the San Justo suburb of Buenos Aires.