Cuba’s national electricity grid collapses again, triggering a nationwide blackout late Sunday into Monday, according to state-run grid authorities and multiple international outlets. Reports describe “total disconnection” of the national system, with power going out across Havana and other parts of the island. Authorities say efforts to restore electricity are repeatedly disrupted, including by unfavorable Caribbean weather, as described by Deutsche Welle. Several sources note that the blackout comes after recent outages and that Cuba has experienced multiple nationwide grid failures this year, with rolling power cuts leaving many residents with electricity only for short periods each day. International reporting links the broader crisis to an aging power infrastructure and fuel shortages. Several outlets cite the impact of a US-imposed energy embargo that has halted or disrupted regular fuel deliveries to power stations, limiting the ability to generate electricity and sustain grid stability. While outlets vary in emphasis—some focus on the immediate collapse and others on underlying causes—coverage broadly agrees that the grid failure is widespread and that restoration attempts are ongoing but constrained.