Scuba divers scouring the wreck of British tech Mike Lynch’s family yacht, which sank off Sicily two days ago, have found two bodies inside it, a source close to rescue operations said on Wednesday.

One of the bodies belonged to a heavily built man, the source said.

Rescue officials have been looking for six missing people, including Lynch, his 18-year-old daughter and Jonathan Bloomer, a non-executive chair of Morgan Stanley International.

The British-flagged Bayesian, a 56-meter-long (184-ft) superyacht, was carrying 22 people, and was anchored off the port of Porticello, near Palermo, when it capsized during a fierce storm on Monday.

Fifteen people survived, while the body of the onboard chef, Canadian-Antiguan national Recaldo Thomas, was found near the wreck hours after the disaster.

Inspection of the wreck, lying sideways at a depth of around 50 meters, was a “long and complex” operation, the Italian fire department said, with inside spaces obstructed by furniture and debris, and scuba divers having just 8-10 minutes beneath the water before needing to resurface.

Separately, the coast guard deployed a remotely operated vehicle to scan the seabed and take underwater pictures and videos that it said may provide “useful and timely elements” for prosecutors looking into the disaster.

The coast guard has been questioning survivors, including the captain of the Bayesian, and passengers on the yacht that was moored next to it who witnessed the ship going down, judicial sources said.

No one is under investigation at the moment, sources added.