In his message to Khrushchev, Fidel Castro evaluated the two possible scenarios of American aggression against Cuba. Castro seems to suggest a retaliatory nuclear strike against the US in the case of an attack on Cuba.

The Soviet Ministry of Foreign Affairs relayed a message from U Thant: The delegates of a large number of countries urged the involved parties to restrain from any actions that can exacerbate the situation. They also called for a voluntary suspension of quarantines for the inspection of ships bound for Cuba.

The Soviet Ministry of Foreign Affairs ordered its ambassadors to visit the local ministers of foreign affairs and inform them of the declaration of the USSR on the situation in Cuba and its decision to bring the American violation of the UN charter before the UN.

Soviet Foreign Minister Andrei Gromyko cables the Soviet Embassy in Havana that the Soviet leadership had decided to allow UNSG U Thant and his representatives to visit Soviet launchers sites in Cuba and verify that the launchers are being dismantled.

Dobrynin sends the results of a meeting between Rusk, himself and the Foreign Ministers of Latin American countries where they discussed questions of security, trade, and the question of the Cuban government in exile.