The yacht, named Bayesian, was carrying 10 crew members and 12 passengers when it capsized at about 5am local time (4am BST) off the coast of Palermo on Monday. Fifteen people were rescued following the incident. Here, the PA news agency provides a list of those thought to have been involved so far.

The technology tycoon, who founded software giant Autonomy in 1996, is one of four missing British passengers who are thought to be trapped on the sunken boat. He was cleared in June of conducting a massive fraud relating to an 11 billion dollar (£8.64 billion) sale to US company Hewlett Packard.

Mr Lynch was made an OBE for services to enterprise in 2006. Sicily’s civil protection agency told the BBC that the 18-year-old daughter of Mr Lynch was also among those missing. The body recovered from close to where the luxury yacht sank was that of Antiguan-Canadian chef Recaldo Thomas, the Italian coastguard told Sky News.

A spokesperson for the Canadian foreign ministry said they were “aware of reports that a Canadian citizen has died” and said consular officials were in contact with local authorities but declined to offer any further information. The Morgan Stanley International chairman was confirmed to be among those missing on the yacht by Aki Hussain, the group chief executive of Hiscox, where Mr Bloomer is non-executive chairman. Mr Bloomer, who is also the former chief executive of global finance group Prudential, was among those to give evidence as a defence witness fo.