Cuba's energy crisis deepens as US sanctions take effect
State-run CUPET is in charge of Cuba's oil production, refining, and fuel imports
The strict US blockade has prevented the island from receiving crude or fuel for months
Fuel scarcity affects power generation, leaving many without electricity
The UN human rights chief warns of 'widespread harm' caused by US sanctions
Cuba's latest oil import arrived from Russia in late March, giving the island a breather amid acute scarcity
Washington has blocked any oil supplies from Venezuela, which used to be Cuba's largest oil provider
The US Treasury freezes assets of state-run oil company CUPET and bars Americans from dealing with it
Cuba rejects allegations of using energy as a tool of social control and kleptocratic profit
The sanctions have a direct impact on the Cuban people, who suffer from widespread power outages and limited access to basic necessities.
