HAVANA, Aug 3, 2026 (BSS/AFP) - Cuba's power grid failed Sunday, causing another nationwide blackout, a state utility said in a social media post.

State-run UNE said there was a "total disconnection" of the national electricity system, plunging the country, including the capital, into abrupt darkness.

As the lights suddenly turned off across Havana, residents who were sat outside to get some respite from the summer heat audibly groaned en masse.

Cuba has been suffering rolling power cuts due to aging equipment and a US energy embargo that halted regular deliveries of fuel for power stations.

But this is the latest in a series of total collapses of the electricity grid.

Just 24 hours ago, the whole west of the country went dark.