250 people are now known to have died in the earthquake that hit central Italy on Wednesday
The earthquake, which had a magnitude of 6.2, was felt in Rome, 140km (85 miles) to the south-west
Rescuers concentrate the search for survivors in four towns reduced to little more than rubble - Amatrice, Accumoli, Pescara del Tronto and Arquata del Tronto
The Italian Red Cross says there is still a chance of finding people alive
Survivors whose homes were destroyed spent the night in cars and tents
All times in BST (GMT+1)
One of the most-shared tweets since the Italy earthquake was a Red Cross appeal for people in the area to disable their wifi passwords. This would allow the rescuers to communicate with each other more easily than if they were all relying on mobile networks.
The aftermath of the deadly earthquake in central Italy dominates the front pages of the press on 25 August, with some papers wondering why the tragedy was not prevented.
Read MorePolice officers and other emergency workers are using dogs to help them search the rubble for signs of life.
Image source, EPA
Image source, Getty Images
Image source, AFPAnd the human-canine teams helped rescue some dogs from under the rubble, too.
This one had been buried for 30 hours and was returned to an owner who was in tears, this tweet says.
The BBC's Jenny Hill tweets that there has been a "violent" aftershock in Amatrice.
The World at One
BBC Radio 4
Paolo Beccegato, vice director of the charity Caritas Italy, told BBC Radio 4's The World at One there is "a lot of suffering" in the affected area. He said the situation was "very difficult", even compared to other earthquakes to have struck Italy.
Caritas Italy CEO says communities hit by the earthquake may struggle to rebuild.
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Today Programme
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The possibility of finding people alive is falling as time goes by, David Fabi, of Italy's National Service of Civil Protection, said this morning.
Mr Fabi said 5,000 people were still involved in a massive rescue effort.
Image source, EPABBC correspondent Damian Grammaticas has written about the scene in Pescara del Tronto. He says:
"Marco and his friends, all members of a local rugby team, had come immediately to Pescara del Tronto to help search for survivors. Looking at the devastation, he shook his head. "It'll be a miracle if we find anyone alive here," he said.
"In a hole beneath him, two firemen had burrowed deep into the rubble looking for a survivor. They were in a tiny space under the stones.
"'It's a dog,' one of them shouted out. For half an hour the men kept digging. They passed water down to be given to the animal. And eventually they worked it free, then emerged, carrying it to the surface.
"There was a ripple of congratulations through the crowd.
"'It doesn't matter to us if it's a person or an animal, we save it,' said Gianni Macerata, the fire officer in charge of his team here.
Then he raised his hand and called for silence. A listening probe and a camera were dropped further into the rubble, looking for signs of life. So the digging goes on.
But so little is left of Pescara del Tronto it is unlikely that more survivors will be found here.
It seems unlikely too that this ancient little place, that has stood for centuries, can ever be rebuilt. Hundreds of years of history ended in an instant.
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An eyewitness has described the utter devastation caused by the earthquake, drawing parallels with the 2009 L'Aquila quake, which killed more than 300 people in the Abruzzo region.
Quote Message"The area is fully devastated. I have seen lots of people being taken from the rubble. I spoke to a fireman and he said it looks like Onna, which was the worst-hit area in the 2009 L'Aquila earthquake. There is just so much destruction. Overnight, people [in Pescara del Tronto] stayed in a big camp on the edge of the village. There were perhaps 100 of them, some from the village itself, others who had come down to search for family members and people from surrounding areas who were too scared to sleep in their houses with all the tremors still going on."
Paolo Brera, La Repubblica photo journalist
BBC correspondent tweets...
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A Polish woman who survived the earthquake says she will never forget the "evil murmur of moving walls'', during the tremor.
The Associated Press agency says Ewa Szwajak told Polish TVN24 how she and her husband were woken in the town Amatrice by tremors and a "terrible noise" and escaped through a balcony with her son, 4.
"We knew it was an earthquake. I will remember 'til the end of my life this noise, the evil murmur of moving walls", she said.
She said her neighbors and their 13-year-old grandson did not survive.
Displaced people in Pescara del Tronto are living in tents which look like this on the outside.
Image source, AFPAnd like this on the inside.
Image source, AFPBravo, an injured guard dog, stubbornly refused to leave the scene of his collapsed home near Amatrice, La Stampa (in Italian), external reported. It reported when police entered the premises where Bravo lived on Thursday, he remained true to his training and growled to fend them off. Earlier the dog's owners had been pulled from the rubble. Officers were eventually able to win the dog over, the newspaper reported, and he was taken away to receive treatment for a serious leg injury.
"I think they [any survivors] can survive for 12 or 15 hours more - but at the end of this [Thursday] afternoon we'll declare to stop the search because we will not have a probability to find people alive," Forest Rangers regional commander Giovanni Coviello tells the BBC. He says rescuers are continuing to dig through the rubble with their bare hands.
This quake-hit area of Italy - renowned for its gently sloping vineyards and olive groves, as well as its precious towns of cobblestone streets - was already confronting a plague of economic stagnation, its population aging and decreasing, The Washington Post, external says. "Not as rich as Italy’s north or as aid-worthy as its poorer south, it is a part of the country where investment in infrastructure lags."
A number of heartbreaking images have come through from the villages and towns hit by the earthquake. One of the most arresting photographs was taken on Wednesday by Associated Press photographer, Massimo Percossi, who captured this image of a nun, herself injured in the earthquake, using a mobile telephone while lying next to a victim.
Image source, APRomania's foreign ministry has now said five Romanians have died following the earthquake in Italy - an increase on reports from earlier today stating two people had died.
The latest update states 11 people from Romania are also missing.
A local official says there could have been up to 300 people staying in the hillside village of Pescara del Tronto which was virtually razed by Wednesday's earthquake.
The village has only four permanently resident families, but many Italians own holiday homes there. Until they have accounted for everyone, rescue workers will be searching through the rubble.
Image source, EPA
Image source, EPA
Image source, EPA
Image source, EPA
Image source, AFPA door is practically all that remains of this quake-hit building in Pescara del Tronto.
Earthquakes are an ever-present danger for those who live along the Apennine Mountains in Italy. Here are some of the deadliest: