According to what Mentiond on the Official Beyonce Website: Beyoncé Triumphs In Brazil Without Reported Incident

"The reports of gunfire during Beyoncé’s concert in Brazil that allegedly ended her show early, are totally false. Beyoncé played to record crowds on her recent tour in Brazil, without incident, including an audience of 60,000 in São Paulo on Saturday, February 6 and two sold-out shows in Rio on February 7 and 8. The entertainer is currently on the South American leg of her “I AM…” World Tour that plays Buenos Aires, Argentina tonight, Santiago, Chile on Sunday, Lima, Peru on Tuesday and Port-of-Spain, Trinidad on Thursday".