Puerto Rico's governor has said the US territory is "making every effort to prevent" a humanitarian crisis after Hurricane Maria devastated the island.
Ricardo Rosselló said to CBS News "it's a disaster of unprecedented nature. You need to understand it's been two category 4, 5, hurricanes passing through the island in a span of two weeks."
Over a week after the storm made landfall, 80 per cent of the transmission system and 100 per cent of the distribution system for electrical power remains damaged, leaving most of the 3.4 million American citizen residents without power.
Thousands remain in shelters as food and drinking water supplies dwindle on the island, though the US has deployed Federal Emergency Management Agency (FEMA) workers and US Navy ships to deliver aid.
