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.

The island of Puerto Rico is suffering another island-wide power outage, just months after a dayslong blackout on New Year's Eve kept residents in the dark. Luma Energy said the complete interruption to its service began at about 12:40 p.m local time on Wednesday.

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.