Rescuers are still racing to find survivors from the sunken superyacht near Sicily. 

The yacht's Kiwi captain James Catfield has survived, along with Christchurch lawyer Ayla Ronald and her partner. 

But correspondent Gavin Grey told Ryan Bridge others are still believed to be trapped in the boat's hull. 

Among them are Ronald's colleague Christopher Morvillo and his wife, jewellery designer Neda Morvillo, banker Jonathan Bloomer and his wife, and British tech tycoon Mike Lynch. 

The body of the on-board chef has been formally identified, and British investigators have now arrived on the scene. 

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