Cuban President Miguel Díaz-Canel on Wednesday blamed a U.S.-imposed “genocidal energy blockade” for worsening already grim electricity shortages across the island.

The island's power supplies are dropping to new lows, data compiled by AFP showed, with prolonged blackouts and record generation shortfalls in recent days.

Sixty-five percent of Cuban territory endured simultaneous blackouts on Tuesday, according to the data.

Diaz-Canel acknowledged the "particularly tense" situation in an X post.

"This dramatic worsening has a single cause: the genocidal energy blockade to which the United States subjects our country, threatening irrational tariffs against any nation that supplies us with fuel," he said.