Hurricane Maria barrels into the Caribbean

Rescuers fanned out to reach stunned victims Thursday after Hurricane Maria ravaged Puerto Rico, knocking out electricity to the entire island and triggering landslides and floods.

The extent of the damage is unknown given that dozens of municipalities remained isolated and without communication after Maria hit the island Wednesday morning as a Category 4 storm with 155 mph winds, the strongest hurricane to hit Puerto Rico in over 80 years.

Uprooted trees and widespread flooding blocked many highways and streets across the island, creating a maze that forced drivers to go against traffic and past police cars that used loudspeakers to warn people they must respect a 6 p.m. to 6 a.m. curfew imposed by the governor to ensure everyone’s safety.

“This is going to be a historic event for Puerto Rico,” said Abner Gomez, the island’s emergency management director.

President Donald Trump approved a federal disaster declaration for Puerto Rico.

Previously a Category 5 with 175 mph (281 kph) winds, Maria hit Puerto Rico as the third-strongest storm to make landfall in the U.S., based on its central pressure. It was even stronger than Hurricane Irma that storm roared into the Florida Keys earlier this month.

Maria has caused at least 10 deaths across the Caribbean, including seven in the hard-hit island of Dominica and two in the French Caribbean territory of Guadeloupe. Puerto Rico’s governor told CNN one man died after being hit by flying debris. No further details were available, and officials could not be immediately reached for comment.

Maria weakened to a Category 2 storm later in the day but re-strengthened to Category 3 status early Thursday with winds of 115 mph (185 kph). It was centered about 70 miles (110 kilometers) north of Punta Cana, Dominican Republic, and moving northwest near 9 mph (15 kph). (AP)

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San Juan, Puerto Rico

A mattress, that fell from the third floor lays at ground level surrounded with debris from neighboring apartments at Ciudadela complex in Santurce, San Juan, Puerto Rico, Sept. 20, 2017. (Photo: Dennis M. Rivera Pichardo for The Washington Post via Getty Images)

Guayama, Puerto Rico

Agapito Lopez looks at the damage in his house after the area was hit by Hurricane Maria in Guayama, Puerto Rico, Sept. 20, 2017. (Photo: Carlos Garcia Rawlins/Reuters)

San Juan, Puerto Rico

San Juan is seen during a blackout after Hurricane Maria made landfall on Sept. 20, 2017 in Puerto Rico. (Photo: Alex Wroblewski/Getty Images)

Punta Cana, Dominican Republic

Locals rest inside a shelter before the arrival of the Hurricane Maria in Punta Cana, Dominican Republic, Sept. 20, 2017. (Photo: Ricardo Rojas/Reuters)

Roseau, Dominica

View of damage caused the day before by Hurricane Maria in Roseau, Dominica, on Sept. 20, 2017. (STR/AFP/Getty Images)

Humacao, Puerto Rico

Rescue team members Candida Lozada, left, and Stephanie Rivera, second from left, Mary Rodriguez, second from right, and Zuly Ruiz, right, embrace as they wait to assist in the aftermath of Hurricane Maria in Humacao, Puerto Rico, Wednesday, Sept. 20, 2017. (Photo: Carlos Giusti/AP)

Luquillo, Puerto Rico

Concrete power line poles lies on a highway after the area was hit by Hurricane Maria in Luquillo, Puerto Rico on Sept. 20, 2017. (Photo: Ricardo Arduengo/AFP/Getty Images)

Bavaro, Dominican Republic

A woman covers herself with a plastic bag as she makes her way to work as Hurricane Maria approaches the coast of Bavaro, Dominican Republic, Wednesday, Sept. 20, 2017. (Photo: Tatiana Fernandez/AP)

Guayama, Puerto Rico

Damages are seen in a supermarket after the area was hit by Hurricane Maria in Guayama, Puerto Rico, Sept. 20, 2017. (Photo: Carlos Garcia Rawlins/Reuters)

Guayama, Puerto Rico

A woman reacts while she looks at the damages in the house of her mother after the area was hit by Hurricane Maria in Guayama, Puerto Rico, Sept. 20, 2017. (Photo: Carlos Garcia Rawlins/Reuters)

Fajardo, Puerto Rico

Flooded roads are seen as Hurricane Maria hits Puerto Rico in Fajardo, on Sept. 20, 2017. (Photo: Ricardo Arduengo/AFP/Getty Images)

San Juan, Puerto Rico

Men walk damaged trees after the passage of Hurricane Maria, in San Juan, Puerto Rico, on Sept. 20, 2017. (Photo: Hector RetamalAFP/Getty Images)

Humacao, Puerto Rico

People walk next to a gas station flooded and damaged by the impact of Hurricane Maria, which hit the eastern region of the island, in Humacao, Puerto Rico, Wednesday, September 20, 2017. (Photo: Carlos Giusti/AP)

North Sound, Antigua and Barbuda

Barbuda resident Diamn Beazer (third in line) waits for food at a shelter in the Sir Vivian Richards Cricket Stadium on Sept. 20, 2017 in North Sound, Antigua and Barbuda. Refugees from the island of Barbuda are been housed after the government ordered a mandatory evacuation in response to Hurricane Irma’s devastation of the Caribbean Island. (Photo: Jose Jimenez/Getty Images)

Punta Cana, Dominican Republic

A man tries to salvage a table belonging to his restaurant before the arrival of Hurricane Maria in Punta Cana, Dominican Republic, Sept. 20, 2017. (Photo: Ricardo Rojas/Reuters)

Santo Domingo, Dominican Republic

Workers of the Social State Plan prepare food rations in preparation for Hurricane Maria in Santo Domingo, Dominican Republic, Sept. 19, 2017. (Photo: Ricardo Rojas/Reuters)

Guayama, Puerto Rico

Damage and flooded streets are seen after the area was hit by Hurricane Maria in Guayama, Puerto Rico on Sept. 20, 2017. (Photo: Carlos Garcia Rawlins/Reuters)

San Juan, Puerto Rico

Rain and wind hit a parking lot at Roberto Clemente Coliseum in San Juan, Puerto Rico, on September 20, 2017, during the passage of the Hurricane Maria. (Photo: Hector Retamal/AFP/Getty Images)

Fajardo, Puerto Rico

Hurricane Maria hits Puerto Rico in Fajardo on September 20, 2017. Maria made landfall on Puerto Rico on Wednesday, pummeling the US territory after already killing at least two people on its passage through the Caribbean. The US National Hurricane Center warned of “large and destructive waves” as Maria came ashore near Yabucoa on the southeast coast. (Photo: Ricardo Arduengo/AFP/Getty Images)

San Juan, Puerto Rico

A man passes through a door at Roberto Clemente Coliseum in San Juan, Puerto Rico, which suffered damages from wind on September 20, 2017, during the passage of the Hurricane Maria. (Photo: Hector Retamal/AFP/Getty Images)

San Juan, Puerto Rico

A parking lot is flooded near Roberto Clemente Coliseum in San Juan, Puerto Rico, on Sept. 20, 2017, during Hurricane Maria. (Photo: Hector Retamal/AFP/Getty Images)

San Juan, Puerto Rico

Damage in the Miramar neighborhood is seen from inside the Ciqala hotel as Hurricane Maria bears down September 20, 2017 in San Juan, Puerto Rico. (Photo: Alex Wroblewski/Getty Images)

San Juan, Puerto Rico

Trees are toppled in a parking lot at Roberto Clemente Coliseum in San Juan, Puerto Rico, on Sept. 20, 2017, during the passage of the Hurricane Maria. (Photo: Hector Retamal/AFP/Getty Images)

Hurricane Maria and Hurricane Jose in the Atlantic Ocean

Hurricane Maria which bore down menacingly on the Virgin Islands and Puerto Rico on Tuesday after devastating the tiny island nation of Dominica and Hurricane Jose (top) are both seen in the Atlantic Ocean in this NOAA’s GOES East satellite image taken at 21:45 p.m. EDT on September 19, 2017 (0145 UTC, September 20, 2017). (Photo: NASA/NOAA GOES via Reuters)

San Juan, Puerto Rico

A photographer and police officers look as trees are toppled in a parking lot at Roberto Clemente Coliseum in San Juan, Puerto Rico, on Sept. 20, 2017, during the passage of the Hurricane Maria. (Photo: Hector Retamal/AFP/Getty Images)

San Juan, Puerto Rico

A woman sits in a couch at Roberto Clemente Coliseum, the biggest shelter in the island. Hurricane Irma is been expected over this night and tomorrows early morning. San Juan Sept. 19, 2017. (Photo: Dennis M. Rivera Pichardo for The Washington Post via Getty Images)

Le Carbet, Martinique

People stand next to debris at a restaurant in Le Carbet, on the French Caribbean island of Martinique, after it was hit by Hurricane Maria, on Sept. 19, 2017. (Photo: Lionel Chamoiseau/AFP/Getty Images)

Pointe-a-Pitre, Guadeloupe

A flooded road and a bus stop are pictured on Boulevard Chanzy in downtown Pointe-a-Pitre on Sept. 19, 2017 in the French territory of Guadeloupe after the passage of Hurricane Maria. (Photo: Cedrick Isham Calvados/AFP/Getty Images)

Viard – Petit Bourg, Guadeloupe

An uprooted tree covers a small wooden and iron house in the village of Viard – Petit Bourg, near Pointe-a-Pitre, on Sept. 19, 2017 in the French territory of Guadeloupe after the passage of Hurricane Maria. (Photo: Cedrick Isham Calvados/AFP/Getty Images)

Le Carbet, Martinique

Rocks lay swept by strong waves onto a road in Le Carbet, on the French Caribbean island of Martinique, after it was hit by Hurricane Maria, on Sept. 19, 2017. (Photo: Lionel Chamoiseau/AFP/Getty Images)

Saint-Pierre, Martinique

A man clears debris from a street in Saint-Pierre, on the French Caribbean island of Martinique, after it was hit by Hurricane Maria, on Sept. 19, 2017. (Photo: Lionel Chamoiseau/AFP/Getty Images)

Sainte-Anne, Guadeloupe

A boat lays on its side off the shore of Sainte-Anne on the French Caribbean island of Guadeloupe, early Tuesday, Sept. 19, 2017, after the passing of Hurricane Maria. (Photo: Dominique Chomereau-Lamotte/AP)

Saint Jean Bay, St. Barthelemy

Rain brought by approaching Hurricane Maria falls in Saint Jean Bay, St. Barthelemy, part of the French Antilles, Tuesday, Sept. 19, 2017.(Photo: Enrico Dagnino via AP)

Fort-de-France, Martinique

A motorist drives on the flooded waterfront in Fort-de-France, on the French Caribbean island of Martinique, after it was hit by Hurricane Maria, on Sept. 19, 2017. (Photo: Lionel Chamoiseau/AFP/Getty Images)

Petit-Bourg, Guadeloupe

Powerful winds and rains of hurricane Maria battering the city of Petit-Bourg on the French overseas Caribbean island of Guadeloupe on Sept. 19, 2017. (Photo: Cedrik-Isham Calvados/AFP/Getty Images)

Saint-Pierre, Martinique

A resident stands at her doorstep as she looks at strong waves in Saint-Pierre, on the French Caribbean island of Martinique, after it was hit by Hurricane Maria, on Sept. 19, 2017. (Photo: Lionel Chamoiseau/AFP/Getty Images)

Guadeloupe

Boats remain anchored in a wharf as Hurricane Maria approaches in Guadeloupe island, France, Sept. 18, 2017. (Photo: Andres Martinez Casares/Reuters)

Pointe-a-Pitre, Guadeloupe

A car passes next to a banner warning of a “Red Alert” for rains as Hurricane Maria approaches in Pointe-a-Pitre, Guadeloupe island, France, Sept. 18, 2017. (Photo: Andres Martinez Casares/Reuters)

Petit-Bourg, Guadeloupe

A woman takes a selfie as Hurricane Maria approaches in Petit-Bourg, Guadeloupe island, France, Sept. 18, 2017. (Photo: Andres Martinez Casares/Reuters)

Road Town, British Virgin Islands

British troops from 40 Commando prepare aid for distribution, on the British Virgin Islands, Road Town, Virgin Islands , Sept. 18, 2017. Royal Marines from 40 Commando have been ensuring aid reaches people across the island before Storm Maria arrives. (Photo: Photo by LPhot Joel Rouse/Handout/EPA-EFE/REX/Shutterstock)

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