The United States has announced fresh economic sanctions on Cuba’s president and some of his immediate family, alongside members of the Castro family, in Washington’s latest ramping up of pressure on its communist-led neighbour.

Among those targeted were the son and a grandson of former president Raúl Castro, who no longer holds an official position but remains a key figure on decisions about the future of the island.

President Miguel Diaz-Canel, his wife and stepson were also hit by the latest Treasury department sanctions issued on Thursday, as was the ministry of the revolutionary armed forces and several other entities.