Cuba is suffering from a nationwide blackout as a major investigation into the cause has been launched.Residents shared their panic on X capturing Havana's eerie glow in pictures.The Cuban energy ministry wrote on X revealing a failure at the Diezmero substation sparked the outage and a recovery process is already underway.

Cuba has struggled with blackouts in recent months, including a nationwide one in December. Friday’s power failure was the fourth widespread one in five months. Government officials blame U.S. economic sanctions for the ongoing crisis, while others point to aging infrastructure, fuel shortages and the island’s susceptibility to hurricanes.

Cuba remained largely without power on Saturday morning after the island´s grid collapsed the night before, knocking out electricity for 10 million people and raising fresh questions about the viability of its antiquated generating system.