AKIPRESS.COM - About 840,000 people across Puerto Rico were without power Thursday as the U.S. territory continues to struggle after the damage caused by Hurricane Maria last fall, according to island’s Electric Power Authority, Washington Post reported.

The power company, in tweets Thursday, said that a tree had fallen onto the main line supplying power to the capital, San Juan, and its surrounding communities along the northern coast, and to the southeast part of the island. The tree fell as crews were clearing land in Cayey, a mountain town in southeastern Puerto Rico, as part of a power-restoration project connected with the hurricane.

The blackout is the latest source of frustration for Puerto Ricans, who have dealt with the power lines failing multiple times in recent months. Since the hurricane tore from the island’s southeast corner though the central mountains and out the northwest coast six months ago, several communities near Cayey remain without power. Across the rest of the island, more than 1,200 generators provided by the Federal Emergency Management Agency are still the primary source of power for hospitals, more than two dozen police and fire stations, correctional facilities and water pumps.