The chairman of a Bermuda headquartered company is among the missing after the British-flagged luxury yacht, Bayesian, sank off the coast of Sicily Monday morning, the BBC has reported.

The 70 year old Briton, Jonathan Bloomer and his wife Judy, were two of the six that were still missing after 15 people were rescued and one was confirmed dead.

Mr Bloomer joined international specialist insurer, Hiscox Ltd last summer and became chairman a year ago July.

The diversified international insurance group is listed on the London Stock Exchange and headquartered in Bermuda at Chesney House in Hamilton. The company has more than 3,000 staff across 14 countries and 32 offices.

Mr Bloomer is also the chairman of the Morgan Stanley International bank.

Search, rescue and recovery continued Tuesday as investigators continued to piece together what happened.

Others missing included UK tech entrepreneur Mike Lynch, known as “Britain’s Bill Gates”, and his 18-year old daughter, Hannah.

The two others unaccounted for were lawyer, Chris Morvillo and his wife, Neda, a jewellery designer.

Mr Morvillo successfully defended Mr Lynch against US fraud charges and has been a partner at the Clifford Chance law firm in New York.

The British-flagged luxury vessel capsized at around 4.30am, according to ship-tracking site Marine Traffic cited by the BBC.

It sank with 22 people on board consisting of 12 passengers and a crew of 10,

The Bayesian was a 56-meter sailing superyacht built by Perini Navi in Italy. It was known for its unusual 75-meter single mast, one of the world's tallest made of aluminum2.