Sao Paulo protesters clashed with police who used tear gas and sound bombs to disperse crowds, as thousands rallied against Brazil’s latest round of bus fare hikes. Police resorted to force after part of the march veered from its authorized route, and also arrested one member of the anarchist Black Bloc group, whose radical members took position at the front of the crowd. About 1,000 police officers monitored the rally, with part of the demonstration regrouping to carry on after the encounter. The rally, called by the Free Pass movement, which also convened protests one week ago in Sao Paulo and Rio, is best known as the force behind 2013 protests that spread nationwide just as the Confederations Cup, a dress rehearsal for the 2014 World Cup, was getting under way.