Twitter has suspended numerous accounts run by the Cuban government such as these of state-run media and of officials such as the daughter of Communist celebration leader Raul Castro.
The social media giant cited violations of its policies.
The move came just as President Miguel Díaz-Canel produced a televised statement about prospective fuel shortages.
Cuba’s pro-government journalists’ union denounced the suspensions as “enormous censorship”.
“What is new right here is the enormous scope of this act of cybernetic warfare, clearly planned, that aims to limit the freedom of expression of Cuban institutions and citizens and to silence the leaders of the revolution,” the union stated in a statement.
The suspensions started a tiny ahead of the announcement on state Television on Wednesday by President Diaz-Canel and continued the following morning.
They contain the account of the Television programme, Mesa Redonda, on which Mr Díaz-Canel appeared the state-run newspaper Granma Digital the state radio station Radio Rebelde, and the account of Raul Castro’s daughter and head of the Cuban gay rights commission, Mariela Castro.
Mr Díaz-Canel’s account was not suspended and he utilized it to share the journalist union’s statement.
A Twitter spokesman did not give certain examples of exactly where its guidelines had been broken.
But he stated the company’s platform manipulation policies prohibit customers artificially amplifying or disrupting conversations by making use of various accounts.
The owners of the relevant accounts had been contacted and told the motives for the suspensions, the enterprise added.
Twitter CEO and co-founder Jack Dorsey lately visited Cuba and officials at the foreign ministry have publicly requested an explanation from him, the BBC’s Will Grant in Havana says.
In his televised address, Mr Díaz-Canel warned of difficulties with fuel supplies in the coming weeks.
He stated the distribution of fuel, particularly of diesel, was becoming badly hit by US sanctions against Venezuela – Cuba’s principal oil supplier.
He stated it was probably there would be blackouts subsequent week, suggesting that people today need to perform from house.