Former Formula One driver David Coulthard has tweeted:
shocking news about Sean Edwards passing, top man and super talented racer, condolences to his nearest and dearest.
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Harry will also pay tribute to a British soldier killed by an elephant during anti-poaching operations in Malawi.
The family are making an official visit to South Africa.
The duke, who has admitted “I feel more myself in Africa”, is about to begin a tour of South Africa with the duchess and Archie.