(CNN) Rescue crews searched desperately through rubble for survivors of a magnitude-7.8 earthquake that struck coastal Ecuador.

The death toll has soared to 272, Ecuador's President Rafael Correa said Sunday evening. That number is expected to rise as rescue teams dig through the rubble, he said.

Earlier that day, Vice President Jorge Glas had estimated that at least 2,527 people were injured.

The hardest-hit area was the coastal Manabi Province, where about 200 people died, said Ricardo Peñaherrera of Ecuador's national emergency management office. The cities of Manta, Portoviejo and Pedernales, a tourist destination, saw the most devastation but damage was widespread throughout the country.

"The first hours are crucial," Correa said. "We're finding signs of life in the rubble. We're giving this priority. After, we'll work to find and recover bodies."

People looking for family and friends frantically dug with their hands and tools until excavation equipment arrived.

Photos: Powerful quake hits Ecuador Soldiers move an injured person onto a military airplane at an air base in Manta on Tuesday, April 19. A magnitude-7.8 quake struck off Ecuador's central coast on Saturday, April 16, flattening buildings and buckling highways. It's the deadliest quake to strike the South American country in decades. Hide Caption 1 of 29 Photos: Powerful quake hits Ecuador Hide Caption 2 of 29 Photos: Powerful quake hits Ecuador A relative kisses a photo of Kexly Valentino attached to her coffin in Montecristi on April 19. Kexly and her mother and brother died in the quake. Hide Caption 3 of 29 Photos: Powerful quake hits Ecuador Rescuers search for survivors in Manta on April 19. Hide Caption 4 of 29 Photos: Powerful quake hits Ecuador Maria Victoria, 89, is comforted by her daughter Mariana in Estancia Las Palmas on April 19. The elderly woman was injured when a column fell on her. Hide Caption 5 of 29 Photos: Powerful quake hits Ecuador A Manta family wakes up April 19 after sleeping outside their home destroyed in the quake. Hide Caption 6 of 29 Photos: Powerful quake hits Ecuador Firefighters remove a body from a destroyed building in Portoviejo on Monday, April 18. Hide Caption 7 of 29 Photos: Powerful quake hits Ecuador A truck moves the belongings of a family from Pedernales to Jama over a road destroyed in the quake on April 18. Hide Caption 8 of 29 Photos: Powerful quake hits Ecuador Pallbearers carry a coffin to a cemetery as relatives mourn the loss of loved ones in Portoviejo on April 18. Hide Caption 9 of 29 Photos: Powerful quake hits Ecuador A man, his home destroyed by the earthquake, sleeps in a boat docked along the shore in La Chorrera on April 18. Hide Caption 10 of 29 Photos: Powerful quake hits Ecuador Ecuadorian President Rafael Correa kisses a group of children after meeting with local authorities at the emergency center in Portoviejo on Sunday, April 17. Hide Caption 11 of 29 Photos: Powerful quake hits Ecuador Rescue workers search the rubble of a collapsed building for victims in Guayaquil, Ecuador, on April 17. Hide Caption 12 of 29 Photos: Powerful quake hits Ecuador Volunteers remove a body from a destroyed house in Pedernales, Ecuador, on April 17. Hide Caption 13 of 29 Photos: Powerful quake hits Ecuador Vehicles from a car dealership hang on a precipice caused by an earthquake induced landslide in Portoviejo, Ecuador, on April 17. Hide Caption 14 of 29 Photos: Powerful quake hits Ecuador People walk among the debris of a collapsed building in Pedernales, Ecuador, on April 17. Hide Caption 15 of 29 Photos: Powerful quake hits Ecuador A woman cries as she stands next to a destroyed house in Pedernales, Ecuador, April 17. Hide Caption 16 of 29 Photos: Powerful quake hits Ecuador People make their way through debris from a collapsed building in Pedernales, Ecuador, on April 17. Hide Caption 17 of 29 Photos: Powerful quake hits Ecuador A building has collapsed in Portoviejo on April 17. Hide Caption 18 of 29 Photos: Powerful quake hits Ecuador People search through the rubble of destroyed homes in Pedernales on April 17. Hide Caption 19 of 29 Photos: Powerful quake hits Ecuador A destroyed vehicle lies under debris in Portoviejo on April 17. Hide Caption 20 of 29 Photos: Powerful quake hits Ecuador A man takes in the damage in Portoviejo on April 17. Hide Caption 21 of 29 Photos: Powerful quake hits Ecuador A rescue worker searches a destroyed house in Pedernales on April 17. Hide Caption 22 of 29 Photos: Powerful quake hits Ecuador Residents remain on the streets for fear of aftershocks in Pedernales on April 17. Hide Caption 23 of 29 Photos: Powerful quake hits Ecuador Rescue workers try to pull out survivors trapped in a collapsed building in Manta on April 17. Hide Caption 24 of 29 Photos: Powerful quake hits Ecuador Police check out a car crushed under a collapsed overpass in Guayaquil. Hide Caption 25 of 29 Photos: Powerful quake hits Ecuador Rescue workers stand near a destroyed car in Guayaquil. Hide Caption 26 of 29 Photos: Powerful quake hits Ecuador Residents walk on a street amid destroyed buildings in Guayaquil on April 16. Hide Caption 27 of 29 Photos: Powerful quake hits Ecuador An hotel leans after the earthquake in Manta on April 16. Hide Caption 28 of 29 Photos: Powerful quake hits Ecuador Damage is seen inside a store in Guayaquil on April 16. Hide Caption 29 of 29

"It was the worst experience of my life," survivor Jose Meregildo said Sunday about the tremors that violently shook his house in Guayaquil, 300 miles away from the quake's epicenter. "Everybody in my neighborhood was screaming saying it was going to be the end of the world."

The earthquake hit Saturday around 7 p.m. while people were going about their evening. The tremors buckled overpasses trapping drivers. A shopping mall partially collapsed on customers and several buildings have been flattened with their content spilled into the streets.

All six coastal provinces -- Guayas, Manabi, Santo Domingo, Los Rios, Esmeraldas and Galapagos -- are in state of emergencies.

People left their homes and wandered around, some sleeping in the streets.

"I found my house like this," said Nely Intriago, standing in front of a pile of rubble. "What am I going to do? Cry, that's what. Now we are on the street with nothing."

Armed forces, police deployed

In a race to help residents, Ecuador deployed 10,000 soldiers and 4,600 police officers to the affected areas. The armed forces built mobile hospitals in Pedernales and Portoviejo and set up temporary shelters.

The military also brought in more K9 units to aid the search for survivors -- and bodies.

Videos showed rescuers pulling a young girl underneath the rubble of the Hotel Miami in the province of Manabi, finally pulling her out and taking her away on a stretcher.

Getting supplies and rescue crews to emergency areas has been a challenge.

Peñaherrera, of the emergency management office told "The lack of water and communication remains a big problem,"Peñaherrera, of the emergency management office told CNN en Español . "Many highways are in bad shape, especially in the mountainous area because it has been raining recently due to (the) El Niño weather phenomenon."

The governments of Colombia, Chile, Spain and Mexico are sending help for rescue efforts, the vice president said. Secretary of State John Kerry said that the United States was "ready to assist in any way we can."

Correa arrived to the city of Portoviejo on Sunday night after cutting short his visit to a Vatican conference.

"I have infinite gratitude to the spirit of the Ecuadorian people, of our firefighters, our soldiers, our policemen and all workers who haven't slept, haven't eaten as they work hard to save lives," he said after arriving.

The president's official Twitter account used a hashtag that translated to "Ecuador ready and in solidarity" and showed him at one of the disaster sites.

During his Sunday prayer, Pope Francis asked for those present to pray for the people affected by the earthquakes in Ecuador and Japan

"Last night a violent earthquake hit Ecuador, causing numerous victims and great damages," Francis said. "Let's pray for those populations, and for those of Japan, where as well there has been some earthquakes in the last days."

Closures in recovery efforts

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Ecuador's Interior Ministry ordered all nightlife venues in affected areas closed for the next 72 hours.

Also, the nation's soccer federation said it has suspended the remaining matches of the current round of the Ecuadorian championship.

All mobile operators are allowing free text messages for customers to reach out to loved ones in Manabi and Esmeraldas provinces, Glas said.

The tremor was centered 27 kilometers (16.8 miles) southeast of the coastal town of Muisne, according to the U.S. Geological Survey.

It's the deadliest earthquake to hit the nation since March 1987 when a 7.2-magnitude temblor killed 1,000 people , according to the USGS.

The earthquake left shoppers shaken in Guayaquil. Video footage from a store showed kitchen utensils swinging back and forth as some items tumbled off shelves.