NOTE: Video has no sound.br br Two prisoners were beheaded and another killed during a riot over conditions at a jail in southern Brazil. Inmates of the penitentiary in Cascavel took at least two other agents and a number of other inmates hostage in the uprising on Sunday, br br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.