UKIP Funder Arron Banks has been criticized for a Tweet joking about climate activist Greta Thunberg and 'freak yachting accidents'.
Nobel Peace Prize nominee Thunberg is currently sailing to the US in a solar-powered yacht. Her zero-carbon journey across the Atlantic will take two weeks.
Banks made his joke in response to a tweet by Green Party MP for Brighton Caroline Lucas. She said: "Bon voyage to Greta Thunberg for her two-week zero-carbon trip by sail across the North Atlantic. She's carrying the vital message to the UN that time is running out to address the climate emergency."
The UKIP donor retweeted Lucas' message, adding: "Freak yachting accidents do happen in August..."
Since then, Banks has been slammed - even by those who have themselves mocked Thunberg, including broadcaster Julia Hartley-Brewer, who said: "She's a child, Arron. FFS."
Another Twitter user added: "Veiled death threats towards a 16-year-old. What a vile individual. I hope we see you in jail one of these days."
British actor Amanda Abbington tweeted: "You're wishing a potentially fatal accident onto a sixteen-year-old girl, why..?"
'No sense of humor'
Banks responded to the criticism saying: "Obviously I don't hope she encounters a freak yachting accident! I just enjoy watching the ludicrous tweeter mob following the next outrage."
He later replied to another message saying: "It was a joke .. you lefties have no sense of humor."