What is known about the sinking of a luxury yacht off the coast of Sicily and those aboard

abcnews.go.com:

Specialist cave divers working in 12-minute underwater shifts are searching 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 slammed by a powerful storm and ...

PORTICELLO, Sicily — PORTICELLO, Sicily (AP) — Specialist cave divers working in 12-minute underwater shifts 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 slammed by a powerful storm 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.

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, 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