By Sunday afternoon, power was restored to two-thirds of Havana, a day after the Energy Ministry had reported a 'total disconnection' of the national electric system. Blackouts have lately been intensifying because of aging infrastructure and a US oil blockade.

Cuba experiences its second nationwide blackout in a week, exacerbated by an ongoing U.S. oil blockade and energy crisis.

Cuba is again without electricity as power grid has collapsed for a third time this month.