Striking cleaners demonstrate in Rio de Janeiro's centre About 300 street cleaners on strike demonstrated outside the offices of municipal sanitation agency Comlurb on Thursday afternoon in Rio de Janeiro. The strikers, who said some 70 percent of cleaners joined their protest, complained not only of poor pay and conditions but also of the extra work caused by the Carnival, which saw some four million people take to the streets to party. Images and soundbites.