On October 30, 1950, San Juan was the scene of the San Juan Uprising, one of many uprisings which occurred in various towns and cities in Puerto Rico, by the Puerto Rican Nationalist Party against the governments of Puerto Rico and the United States. Among the uprising's main objective was to attack La Fortaleza and the United States Federal Court House Building in Old San Juan. The "La Fortaleza battle", which ensued between the nationalists and the police lasted 15 minutes, and ended when four of the five attackers were killed.