The U.S. effort against Castro comes as President Donald Trump has grown increasingly frustrated with the Cuban government’s ability to remain in power.

The US is ramping up pressure on Cuba’s government, preparing an indictment against former President Raúl Castro, according to sources, as Washington demands reforms from the…

The potential indictment — which must be approved by a grand jury — is expected to focus on Cuba's 1996 downing of two planes operated by a humanitarian group.