Striking teachers in Mexico's Guerrero state attacked the offices of four political parties and a building of the state's education department Wednesday after the legislature approved an education reform without meeting their demands. Dozens of teachers carrying sticks and stones smashed windows, spray-painted insults at President Enrique Pena Nieto on walls and destroyed computers and furniture. They set fire to the state headquarters of the ruling Institutional Revolutionary Party and another building. Scroll down for video Protesting against President Pena Nieto's education reform project, a teacher burns a photograph of the Mexican leader outside a Secretary of Education office after they attacked the building, in Chilpancingo on Wednesday Demonstrators attack the Democratic Revolution Party headquarters, during riots in Chilpancingo, Guerrero State, The statue burns - the graffiti translates into 'Traitors sell country' No injuries were reported as t