PORTICELLO, Sicily (AP) 鈥� Specialist were searching Tuesday for six missing passengers and crew, including British tech tycoon Mike Lynch, believed to be in the submerged wreck of a luxury yacht that was and swiftly sank off Sicily.
The sleek yacht, named the Bayesian, was carrying a crew of 10 people and 12 passengers when it suddenly sank near the Mediterranean island that is part of Italy at about 4 a.m. on Monday. One body has been recovered and 15 people survived.
Fire rescue officials have said the six believed to remain in the sailboat's hull will be considered missing until they are located in the wreckage.
Here's what we know so far about the sinking and those who were on board.
What happened?
Italian civil protection officials believe a sudden and fierce storm that battered the coast of Sicily in the early hours of Monday whipped up a waterspout in the exact spot where the 56-meter (184-foot) British-flagged Bayesian was moored.
Karsten Borner, the captain of another yacht moored nearby, said he saw the Bayesian during the storm but when the wild weather passed it was gone and he saw only a red flare lighting the night sky, the Italian news agency ANSA and the Giornale di Sicilia newspaper reported.
Borner and one of his crew boarded their tender and found a lifeboat carrying 15 people, some of them injured. They took them aboard their yacht and alerted the coast guard.
Rescue authorities said the wreck was resting at a depth of 50 meters (163 feet) about a half mile offshore of the picturesque fishing village of Porticello.
Who was on board?
Among the missing is 59-year-old tech tycoon , sometimes described as the British Bill Gates. Lynch was acquitted in June of all charges in a U.S. fraud trial linked to the $11 billion sale of his software company Autonomy to Hewlett-Packard in 2011.
Lynch still faced a potentially huge bill stemming from a civil case in London that HP mostly won during 2022. Damages haven鈥檛 been determined in that case, but HP is seeking $4 billion. Lynch made more than $800 million from the Autonomy sale.
A Cambridge-educated mathematician, Lynch made his name running Autonomy, which made a search engine that could pore through emails and other internal business documents to help companies find vital information more quickly.
Lynch鈥檚 18-year-old daughter Hannah was reportedly among the missing. His wife, Angela Bacares, and 14 other people survived.
Among others still missing Tuesday, according to the civil protection agency, were one of Lynch鈥檚 U.S. lawyers, Christopher Morvillo of Clifford Chance, and Morvillo鈥檚 wife, Neda. Morvillo was regarded as an elite defense lawyer and was also a federal prosecutor in New York after 9/11.
Also missing was Jonathan Bloomer, the non-executive chairman of Morgan Stanley International, and his wife, Judy. He is the former head of the Autonomy audit committee and testified for the defense at Lynch鈥檚 trial.
Bloomer was also chair of the Hiscox Group, an insurer that does business on the Lloyd鈥檚 of London market.
鈥淲e are deeply shocked and saddened by this tragic event,鈥� Hiscox CEO Aki Hussain said in a statement.
Among the survivors was Charlotte Golunski, who said she momentarily lost hold of her 1-year-old daughter Sofia in the water, but then managed to grab her and hold her up over the waves until a lifeboat inflated and they were both pulled to safety, ANSA reported. The father, identified by ANSA as James Emslie, also survived.
The Dutch foreign ministry said a Dutch man survived. The ministry, citing privacy, did not release his identity.
One body was recovered on Monday, identified as the on-board chef.
What is the Bayesian?
The Bayesian was a luxury yacht built in 2008 by the Italian firm Perini Nav. It was known for its single 75-meter (246-feet) aluminum mast 鈥� one of the world鈥檚 tallest. Online charter sites listed it for rent for up to 195,000 euros (about $215,000) a week.
Its registered owner is listed as Revtom Ltd., based on the Isle of Man, according to online maritime database Equasis. Lynch鈥檚 wife is listed as Revtom鈥檚 sole owner, according to corporate registration documents from the Isle of Man.
The yacht's name is an apparent reference to 鈥淏ayesian inference,鈥� one of the two main approaches to statistical machine learning and the one that was used by Autonomy.
What is a waterspout?
Waterspouts are tornadoes that form over water and can happen when a storm moves across warm water.
According to the U.S. National Ocean Service, there are two types of waterspouts 鈥� fair-weather and tornadic.
Tornadic waterspouts 鈥渉ave the same characteristics as a land tornado. They are associated with severe thunderstorms, and are often accompanied by high winds and seas, large hail, and frequent dangerous lightning,鈥� the service says on its website.
While scientists haven鈥檛 attributed the specific event to climate change, average monthly surface temperatures have been . Hotter air can hold more moisture, making heavier storms more likely.
Sicily has been , and the United Nations鈥� the Mediterranean Sea is particularly vulnerable to climate change, with warming rates roughly 20% higher than the global average.
How rare is it for a huge sailboat like this to capsize?
Experts say it is extraordinarily rare for a luxury sailboat of this size to capsize due to weather events.
鈥淭his just doesn鈥檛 happen. You know, boats sink because things like keels fall off, or they run aground and breach the hull ... whereas just from a weather angle, a boat that big being pushed over on its side is absolutely extraordinary,鈥� said Skip Novak, a lifelong sailor who has taken part in multiple round the world yacht races and written books about sailing.
Novak said he believed that strong gusts likely pushed the yacht over 90 degrees to its side, and the vessel did not recover because of the weight of the huge mast and because it was anchored. He suggested that internal doors were likely not closed, and water quickly poured in to sink the vessel.
鈥淲hen you鈥檙e at anchor, even if it鈥檚 blowing with a storm in the Mediterranean, you rarely shut the whole boat down because nobody expects something like this to happen," Novak told The Associated Press. 鈥淪o if the boat wasn鈥檛 completely watertight at the deck, you鈥檇 have flooding going in. It would take a couple minutes and that would be it."
What happens next?
As the search for the missing continues, authorities already have begun trying to piece together exactly what happened.
Prosecutors from the Sicilian town of Termini Imerese have opened an investigation, as is normal in such events even when no suspects are identified. To date, they have not commented publicly.
The British Marine Accident Investigation Branch said four of its inspectors were being deployed to Palermo.
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Corder reported from The Hague, Netherlands. Associated Press writer Sylvia Hui in London contributed to this report.
Andrea Rosa And Mike Corder, The Associated Press
