A man stands on a car on a flooded street in San Juan on Sept. 25, 2017.
National Guard soldiers arrive at Barrio Obrero to distribute water and food in San Juan on Sept. 24.
A person waves to a passing helicopter from inside a damaged home in Toa Baja, southwest of San Juan on Sept. 25.
Federal agencies rescuing people and delivering humanitarian aid to Puerto Rico faced an island that remains largely without power, running water, fuel and access to cell service five days after the storm first made landfall on Sept. 20.
A man hangs laundry in Progreso Barrio Pulguillas on Sept. 24.
A house destroyed by hurricane winds stands in Toa Baja on Sept. 24.
Marks of the flood water level are seen on the walls of a house in Toa Baja on Sept. 24.
People hang out near a business using a generator to keep its lights while waiting for the damaged electrical grid to be fixed in San Juan on Sept. 23.
People sit in their apartment in San Juan on Sept. 25, after the window was blown out by strong hurricane winds.
A doctor checks Hilda Colon's eyes at a shelter set up at the Pedrin Zorrilla coliseum in San Juan on Sept. 25.
People wait in a long line at a bank in San Juan on Sept. 25.
A man rides his bicycle on a damaged road in Toa Alta on Sept. 24.
Family members collect their belongings on Sept. 24 after hurricane force winds destroyed their house in Toa Baja.
Downed trees surround damaged homes in Corozal on Sept. 25.
Karlian Mercado, 7, rests on the rubble of her family's home in Hayales de Coamo on Sept. 24.
Damaged homes cling to the edge of land amid mudslides in Naranjito, southwest of San Juan, on Sept. 24.
Puerto Rico Governor Ricardo Rossello called Maria the most devastating storm in a century after it destroyed the U.S. territory's electricity and telecommunications infrastructure.
A damaged airplane-themed restaurant sits in Barranquitas, southwest of San Juan on Sept. 24.
Residents in Old San Juan's La Perla community hug on Sept. 25.
An aerial view shows the damage to the Guajataca dam in Quebradillas on Sept. 23.
Jose Garcia Vicente stands in his destroyed home in Aibonito on Sept. 25.
A man calls out to a helicopter from a flooded street in San Juan on Sept. 25.
A woman washes her hair in a natural spring in Toa Alta on Sept. 25.
A house destroyed by hurricane winds is seen in Barranquitas on Sept. 24.
A man walks on a highway divider while carrying his bicycle in San Juan on Sept. 21.
A man rides his horse on a flooded street in San Juan on Sept. 22.
Damaged homes stand in the flooded neighborhood of Juana Matos in Catano on Sept. 22.
La Plata Lake Dam is seen almost overflowing on Sept. 25, in Bayamon.