He also warned that Cuba faced a "long and difficult struggle" before the US removed its economic embargo.
On Wednesday, President Barack Obama announced a "new chapter" in US ties with communist-run Cuba, as reports Reportciting BBC.
He said the changes were the "most significant" in US policy towards Cuba in 50 years.
US-Cuba relations have remained frozen since the early 1960s, when the US broke off diplomatic relations and imposed a trade embargo after Cuba's revolution.