Incident: A luxury yacht sank off the coast of Sicily, Italy, during a severe storm.

Casualties: One person has been confirmed dead, and six others, including British tech mogul Mike Lynch and his daughter, remain unaccounted for.

Rescue: 15 people were rescued, including Lynch's wife and eight were hospitalized.

Yacht Details: The yacht, named "Bayesian," was a 56-meter British-flagged vessel with 22 people on board.

Storm Impact: The yacht sank during a powerful storm near the Porticello harbor.

Missing Names: The names of the deceased and missing are not yet known, but Lynch and his 18-year-old daughter, Hannah, are confirmed missing.

Background: Mike Lynch, a renowned British tech entrepreneur, founded the software company Autonomy and was involved in a high-profile legal case in the US.

Legal Status: Lynch was acquitted of fraud charges in June and had been under house arrest.