President Obama met with Cuban President Raul Castro at the United Nations Tuesday.
The meeting took place during the United Nations General Assembly.
It was their second meeting this year.
Both leaders have been working to normalize relations between the U.S. and Cuba following decades of tension.
The two countries have reopened embassies in each other's capitals.
The United States also recently eased rules for citizens who want to visit or do business in Cuba.
However, sharp differences remain, particularly over Cuba's human rights record and detainment of political prisoners.
Both sides want Congress to lift a longstanding economic embargo against the communist nation, but many Republican lawmakers and some Democrats want to keep it in place.
Cuba also seeks the return of land occupied by the U.S. Naval base at Guantanamo Bay, but the U.S. says that is not in the plan.