Hurricane Oscar's arrival to eastern Cuba Sunday has impacted millions of residents already facing days without power, as fresh attempts to restore much of the nation's electric grid have failed.

Cuba's electrical grid collapsed again on Sunday, the fourth such failure in 48 hours, raising fresh doubts about a quick fix on an island already suffering from severe shortages of food, fuel and medicine.

HAVANA — Cuba’s electrical grid collapsed again on Sunday, the fourth such failure in 48 hours as a looming hurricane threatened to wreak further havoc on the island’s decrepit infrastructure.

Cuba's government said on Saturday it had made some progress in gradually re-establishing electrical service across the island, including to hospitals and parts of the capital Havana, after state-run media earlier reported the national grid had collapsed for a second time in 24 hours.

CubaDebate, one of the islands state-run media outlets, said Cuba`s grid operator, UNE, had reported at 6:15AM the "total disconnection of the national electro-energetic system." "The Electric Union is working on its reestablishment,

The majority of Cubans remain without power for the third day in a row after fresh attempts to restore electricity failed overnight

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.