Rescue crews are hoping for a miracle.

Mike Lynch, a British tech magnate, and his daughter Hannah are said to be two of six passengers who are still missing after their super yacht Bayesian sank during a freak storm off the coast of Sicily early Aug. 19, according to NBC News.

Lynch’s yacht had a crew of 10 people and 12 passengers on board, and six remain unaccounted for, including Lynch’s daughter Hannah, whom the BBC believes to be 18-years-old.

Salvo Cocina of Sicily’s civil protection agency told NBC that a tornado over the water—known as a waterspout—struck the area overnight, causing the catastrophe.

“They were in the wrong place at the wrong time,” he said, adding that a nearby yacht wasn’t as badly damaged. Cocina confirmed and that they were able to save 15 survivors from the Bayesian, including Lynch’s wife Angela Bacares.

Eight of the 15 rescued were taken ashore and transferred to a local hospitalized, while the seven others were moved to a hotel.