Cuba's power grid has ground to a halt for a second time in as many days, leaving 10 million on the island without power and the Caribbean island in a growing sense of crisis.

Cuba’s electrical grid went down Friday after one of the island’s major power plants failed, a day after a massive blackout swept across the Caribbean island and with no official estimate for when service will be restored.

Cuba’s electrical grid went down Friday after one of the island’s major power plants failed, a day after a massive blackout swept across the Caribbean island and with no official estimate for when service will be restored.

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,

After electricity was partially restored in Cuba following an island-wide blackout, the electrical grid collapsed a second time, causing widespread alarm. Journalist Ed Augustin told NBC News that while power is gradually being restored in some areas,

Cuba's government on Saturday said that some electricity was restored on the island after one of the country's major power plants failed and left millions without electricity for two days. Energy Minister Vicente de la O Levy said the country had 500 megawatts in its electrical grid early Saturday,

STORY: Cubans line up at a bakery in Old Havana, trying to make do without power.Most of the island's 10 million people still don't have it.State-run media says the national grid collapsed twice within 24 hours.