Cuba entered a third day without electricity after another outage Saturday evening set back efforts to restore power on the island, underscoring the challenges posed by decades-old, poorly maintained infrastructure.

Cuba faces a deepening crisis after multiple partial grid failures left millions without power, raising concerns over the government's capability to restore service. The crisis is exacerbated as a hurricane approaches,

Cuba's worst economic crisis in decades has caused a shortage of fuel that spurred weeks of often hourslong blackouts. Two nationwide power cuts in less than a day left the Caribbean island in almost total darkness.