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LONDON — The body of British technology entrepreneur Mike Lynch, 59, has been retrieved from the wreckage of a yacht that sank off the coast of Sicily, a source familiar with the matter told CNBC on Thursday, confirming earlier reporting by Sky News.

Lynch's daughter, Hannah, remains unaccounted for, according to the source, who asked not to be identified due to the sensitive nature of the situation. Sky News earlier reported that five bodies pulled from the wreck had been identified by the Italian coast guard, and that Lynch was among the dead.

Lynch, who was reported missing Monday, was one of 22 passengers aboard the Bayesian superyacht, which capsized while anchored in the small fishing village of Porticello, in the province of Palermo in Italy.

On Wednesday, Salvatore Cocina, head of the civil protection agency in Sicily, confirmed to NBC News that five bodies had been recovered from the wreckage of the yacht. The only person confirmed dead by authorities so far has been Recaldo Thomas, a Canadian-Antiguan chef.

CNBC has contacted the Italian coast guard and is awaiting a response.

Lynch was founder of enterprise software firm Autonomy. He became the target of a protracted legal battle with Hewlett Packard after the firm accused Lynch of inflating Autonomy's value in an $11.7 billion sale. HP took an $8.8 billion write-down on the value of the company within a year of buying it.

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