Officials said that a blackout of all of Puerto Rico was reported on Wednesday, as residents of the U.S. Territory, who are primarily Catholics, prepared for the Easter holiday.

Hugo Sorrentini said that all 1.4 million customers on the island are without power. Luma Energy oversees transmission and distribution.

He said, “The entire island lacks generation.”

Officials warn that it will likely take 48 to 72 more hours for power to be restored.

Josue Collon, former executive director of Puerto Rico’s Electric Power Authority and the island’s so-called energy czar, said: “This is not acceptable.”

The cause of the blackout, which was the latest in an ongoing series on the island over the past few years, wasn’t immediately known. Gov. Jenniffer González, who was on vacation, said that officials were “working tirelessly” to resolve the issue.

Puerto Ricans are furious over the latest power outage. Many have renewed their call for the government to cancel the contract with Luma, Genera PR, and other companies that oversee the generation of electricity on the island.

Hundreds of people had to walk along the rails that serve the capital, San Juan’s rapid transit system, and scores of businesses, including the largest mall in the Caribbean, were forced to shut down. As generators hummed and smoke filled the air, professional baseball and basketball matches were cancelled.

Daniel Hernandez, vice-president of operations at Genera PR, said that at a press conference, a disturbance had hit the transmission system just after noon. This is a time when the grid was vulnerable, as there were not many machines that regulated frequency.

Veronica Ferraiuoli said that the White House has reached out to local officials, and they have told them that they are ready to help if necessary.

The last blackout on the island occurred on New Year’s Eve.

Puerto Rico has been plagued by chronic power outages ever since Hurricane Maria ravaged the island in September 2017. The powerful Category 4 storm destroyed a grid that crews have still struggled to rebuild.

As a result, the grid had already deteriorated over the decades due to a lack of maintenance and investment.