Many Cubans waited in anguish late Sunday as electricity on much of the island had yet to be restored days after an island-wide blackout. Their concerns were heightened as Hurricane Oscar slammed into Cuba’s eastern coast,

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

Cuba’s government says some electricity has been restored on the island after one of the country’s major power plants failed and left millions without electricity in an outage that started two days earlier.