Crewmen aboard "São Paulo" rebelled on 4 November 1924, when First Lieutenant Hercolino Cascardo, seven second lieutenants and 260 others commandeered the ship. After the boilers were fired, "São Paulo"s mutineers attempted to entice the crews of "Minas Geraes" and the other ships nearby to join. They were only able to sway the crew of one old torpedo boat to the cause. The battleship's crew, angry that "Minas Geraes" would not join them, fired a six-pounder at "Minas Geraes" that wounded a cook. The mutineers then sailed out of Rio de Janeiro's harbor, where the forts at Santa Cruz and Copacabana engaged her, damaging "São Paulo"s fire control system and funnel. The forts stopped firing soon after the battleship returned fire due to concern over possible civilian casualties. The crewmen aboard "São Paulo" attempted to join revolutionaries in Rio Grande do Sul, but when they found that the rebel forces had moved inland, they set course for Montevideo, Uruguay. They arrived on 10 November, where the rebellious members of the crew disembarked and were granted asylum, and "Minas Geraes", which had been pursuing "São Paulo", escorted the wayward ship home to Rio de Janeiro, arriving on the 21st.