Puerto Rico is expected to turn into a dark year after the power grid collapses

“Although the cause of the outage is being investigated, preliminary results point to a fault in an underground line,” LUMA added.

Ivan Baez, spokesman for power generator Genera, classified the network failure as a “serious incident” in an interview with local radio.

He said the line believed to have failed was operated by LUMA and knocked out power plants owned by Genera as well as private generators.

Puerto Rico Governor Pedro Pierluisi said in a social media post that the government was “demanding answers and solutions” from LUMA and Genera.

Puerto Rico has long dealt with chronic power outages due to the collapse of its infrastructure. The island was hit hard by Hurricane Maria, a Category 4 storm, in 2017.