Millions of people in Puerto Rico remain without electricity in the wake of Hurricane Maria, a new image taken by a US government satellite shows.
Outside the capital city San Juan, residents are still isolated without power or communications, which could take weeks to restore.
Clean water and medicine are also scarce, locals report.
The island’s governor warned on Monday of a “humanitarian crisis occurring in America”, and called for more aid.
“Puerto Rico is part of the United States, and we need to take swift action,” Governor Ricardo Rossello said.
“This is a major disaster,” he added, calling on the US Congress to produce “something tangible, a bill that actually answers to our need right now”.
The island, which is more than $72bn in debt, is facing the largest bankruptcy case in US history.
Gov Rossello warned that lawmakers’ failure to address the lack of funding would produce an “exodus” of Puerto Ricans fleeing to the United States.
President Donald Trump tweeted on Monday that the island is in “deep trouble” after Hurricane Maria, and that its billions of dollars of debt to Wall Street and banks “must be dealt with”.
The president did not address how Puerto Rico’s debt could be eased.
Paul Ryan, the Republican Speaker of the House – the highest ranking member of his party in Congress – tweeted on Monday: “The stories and images coming out of Puerto Rico are devastating.
“Congress is working with the administration to ensure necessary resources get to our fellow citizens i
