Deputy Mayor of the Olympic Village Duncan Goodhew, has told Daybreak, that the use of social media to criticise athletes is not acceptable.
He said: "The social media in one sense is fantastic, but turned the wrong way round is very very personal and it destroys people's lives."
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The man, who was in his 30s, has not been identified, while several other people are believed to have suffered serious injuries.
The Olympian was one of several sports stars who opened up to the prince during an event for his mental health charity Heads Together.
There will be sunny spells, with temperatures peaking at 23 Celsius (73F). However, Northern Ireland will experience frequent showers.