Miguel Díaz-Canel has been sworn in as Cuba’s new president, replacing Raúl Castro who took over from his ailing brother Fidel in 2006.
He said in his inaugural address that there was no room in Cuba for those who strive for the restoration of capitalism.
It is the first time since the revolution in 1959 that a Castro is not at the helm of the government.
Mr Díaz-Canel had been serving as first vice-president for the past five years.
Even though Mr Díaz-Canel was born after the revolution, he is a staunch ally of Raúl Castro and is not expected to make any radical changes.