Mike Lynch yacht sinking must be due to human error, boss of boat builder says

Giovanni Costantino of group that owns Bayesian's maker says it could not have sunk unless a hatch was open

The superyacht that capsized off the coast of Sicily this month, in which the British tech magnate Mike Lynch and six others died, could only have sunk because of human error, according to the chief executive of the company that owns the vessel's manufacturer.

It is thought the Bayesian was struck by a downburst - a gusty wind associated with storms - causing the vessel to capsize and sink within minutes. The victims included Lynch and his 18-year-old daughter, Hannah. Fifteen people survived, including Lynch's wife, whose company owned the Bayesian.