HAVANA, Cuba (AFP)—Cuba fully restored its energy grid early Wednesday after the third nationwide blackout this year, but authorities warned more outages could follow due to fuel shortages.

The Caribbean island is reeling from its worst economic crisis in decades — one made worse by a fuel blockade imposed by US President Donald Trump in January as part of a pressure campaign aimed at ending six decades of communist rule.

Unlike in previous major blackouts, the low fuel supplies have complicated the process of restoring the system after it went offline at noon on Monday, leaving the entire country of 9.6 million without power.