Genoa's police force suggested the number of fatalities could rise still further.
At least 36 people died when a major section of the motorway in Italy's northwest partially collapsed during a heavy storm, according to Chief of Police Col. Riccardo Sciuto.
He added that some 30 cars and between five to 10 trucks were on the road when a section of the bridge crashed down.
The break sent huge slabs of concrete plummeting into two warehouses, some railroad tracks and a riverbed below the bridge. Some 440 people were evacuated from buildings near by. Twelve people are said to be missing.
Firefighters heard voices under the rubble and pulled out seven survivors, fire official Bruno Frattasi told the state broadcaster RAI.
Genoa, home to half a million people, is located between the sea and the mountains of northwestern Italy.
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Mr. Salvini also said he wanted the "names and surnames of those to blame because a tragedy like this in 2018 is not acceptable".
"If they are not able manage our highways, the state will do it", Toninelli said. One truck was stopped just a few feet from the edge of the chasm - the edge of the bridge sheared cleanly off.
But he added that they were about to launch a 20 million euro ($22.7 million) bidding process for significant safety work on the bridge. "It was really an apocalyptic scene, I couldn't believe my eyes".
"I was driving along the bridge, and at a certain point I saw the road in front of me collapse, and I went down with the vehicle", Capello, who is now a firefighter, told TV news channel Sky TG24.
Ponte Morandi, built in the 1960s, was undergoing repairs when the tragedy happened.
Maintenance was "underway to consolidate it", the company in charge of Italian highways, Autostrade, said in a statement on Tuesday.
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He said: "The collapse was unexpected and unpredictable".
Meanwhile, investigators were also working to determine what caused an 80-meter (260-foot) long stretch of highway to break off from the 45-meter (150 foot) high bridge in the northwestern port city.
However, Prof. Brencich did not say at the time that it was in danger of collapsing, but that it required continuous improvements and maintenance and that eventually it would have to be torn down and replaced.
"There will be a time when maintenance costs will exceed those of reconstruction, and then we will have to proceed with the replacement".
He said there was "no reason to consider the bridge was unsafe". The motorway it carries is a major artery from northern Italy's industrial centres to the Italian Riviera and to France's southern coast. In 2016 he spoke with "Ingegneri.info" about construction going over budget and poor calculations over concrete viscosity that led to an uneven road surface which wasn't fully corrected until the 1980s.
French President Emmanuel Macron, meanwhile, offered his country's help in a phone call with Italian Prime Minister Giuseppe Conte, who was expected to travel to Genoa later in the day.
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The U.S. media said the decision was related to the current state of Turkish-American relations and the Brunson case. Trump met Turkish President Tayyip Erdoğan at a July NATO summit, and reportedly cut a deal on prisoner releases.
Atlantia shares closed down more than 5%.