The repeated failure of the power grid and a hurricane that has swamped the island’s eastern end has many Cubans fed up, posing a challenge to the Communist government.

The Cuban president says the deaths occurred in an area that saw historic flooding due to the storm.

A five-year-old boy and his mother, along with a 92-year-old man, are among the six people dead after Hurricane Oscar hit the coastal city of Baracoa and nearby areas in the eastern province of Guantánamo in Cuba as a Category 1 storm on Sunday, bringing heavy rains and flash flooding in a region that has been without electricity since Friday.

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

Seventy percent of Cuba's population has power again as the island recovers from a nationwide blackout and a hurricane that left seven people dead, the government said Tuesday.

Hurricane Oscar left six people dead after hitting Cuba over the weekend during a major power blackout, authorities said Monday, as electricity was restored to most of the capital.