All 1.4 million Luma Energy clients across Puerto Rico were without power on Wednesday. The blackout comes less than five months after another island-wide power outage on New Year's Eve.

Genera PR, the company that generates power on the island, said the "massive power outage" was due to the shut down of all generating plants.

A massive island-wide blackout hit the U.S. territory of Puerto Rico midday Wednesday as residents were preparing for the Easter weekend.