MIAMI (AP) — Hurricane Oscar has made landfall in eastern Cuba, an island beleaguered by a massive power outage, after striking the southeastern Bahamas earlier in the day Sunday, the U.S. National Hurricane Center said.

Cuba had three electric grid collapses since Friday, and most of the country remains in the dark as slow progress is made to restore power.

The center in Miami said the storm’s center arrived in the Cuban province of Guantanamo, near the city of Baracoa, on Sunday evening. Its maximum sustained winds were near 80 mph.