Relations between Cuba and the U.S. were further strained following the explosion of a French vessel, the "La Coubre", in Havana harbor in March 1960. The ship carried weapons purchased from Belgium, and the cause of the explosion was never determined, but Castro publicly insinuated that the U.S. government was guilty of sabotage. He ended this speech with "¡Patria o Muerte!" ("Fatherland or Death"), a proclamation that he made much use of in ensuing years. Inspired by their earlier success with the 1954 Guatemalan coup d'état, in March 1960, U.S. President Eisenhower authorized the CIA to overthrow Castro's government. He provided them with a budget of $13 million and permitted them to ally with the Mafia, who were aggrieved that Castro's government closed down their brothel and casino businesses in Cuba. On 13 October 1960, the U.S. prohibited the majority of exports to Cuba, initiating an economic embargo. In retaliation, the National Institute for Agrarian Reform INRA took control of 383 private-run businesses on 14 October, and on 25 October a further 166 U.S. companies operating in Cuba had their premises seized and nationalized. On 16 December, the U.S. ended its import quota of Cuban sugar, the country's primary export.