Riots broke out in the Brazilian metropolis of Rio de Janeiro before the Copa Libertadores semi-final between Botafogo and Uruguay’s Peñarol and police said Uruguayan fans had looted shops and destroyed vehicles. Photos and videos showed motorcycles and a bus were set on fire on the promenade in the west of Rio de Janeiro. A mob of people threw stones and bottles at the police. They used tables from the shops on the beach as shields and tent poles as clubs, according to local media reports. More than 250 people have been arrested so far, police said. They also confiscated a pistol. “Football i…