Millions of Cubans awoke on Sunday to find their homes still without power after another partial grid failure overnight, deepening a crisis that has raised questions over the viability of the government's efforts to reestablish electrical service.

This was the third full collapse of the country’s energy grid since Friday. Recovery efforts will be complicated further by the arrival of Hurricane Oscar on Sunday.

Cuba's government said late on Saturday it had restored power to nearly one-fifth of the island's people after the national grid collapsed twice in 24 hours, plunging millions of people into darkness.

Cuba’s government reports it has made progress in re-establishing electrical service to parts of the island, which remains mostly shrouded in darkness. Parts of the capital Havana and some hospitals have had their electricity restored after the national grid collapsed twice in a span of 24 hours,

In parts of Cuba, the electric power supply was restored on Sunday after a widespread failure. Despite this, around 80% of residents still don't have electricity. The energy minister warns that the situation may worsen due to the approaching hurricane.

Many Cubans waited in anguish Sunday as electricity on much of the island had yet to be restored days after an island-wide blackout. Their concerns were also raised as Hurricane Oscar made landfall in the southeastern Bahamas and was heading toward their country.

Many Cubans are waiting in anguish as electricity on much of the island has yet to be totally restored after days of blackout

Cuba said it was making headway restoring power on Sunday after multiple false starts, though millions of people remain without electricity more than two days after the grid's initial collapse. The clock was ticking as Hurricane Oscar bore down on the Caribbean island on Sunday,

Many Cubans are waiting in anguish as electricity on much of the island has yet to be totally restored days after a blackout. Some neighborhoods had electricity restored in Cuba’s

Cuba's efforts to restore power to the island were derailed for a third time late on Saturday, Cuban authorities said shortly before midnight, leaving millions in the dark and raising fresh questions over the viability of the government's bid to reestablish electrical service.