Officials in Puerto Rico say the destruction from Hurricane Maria has set the island back 20 to 30 years.
San Juan Mayor Carmen Yulín Cruz says "people are starting to die" as the island awaits further help.
Power problems are coloring every aspect of Puerto Rico's hurricane recovery efforts.
At least 47 people have been killed in the Caribbean by Hurricane Maria.
San Juan Mayor Carmen Yulin Cruz says Puerto Rico's humanitarian crisis is beginning to take a deadly toll on the island.