Thousands of Puerto Ricans are struggling with water shortages so severe that the governor of the U.S. territory has activated the National Guard and emergency responders are fielding calls every day.
Officials have not publicly pinpointed the cause, with shortages largely affecting some areas in the island's most populated cities, including the capital San Juan. The island's utilities company extracts water from rivers, reservoirs and underground aquifers that have in the past provided sufficient supply for the island's 3.2 million people.
