Gareth Roberts, a co-driver taking part in the Targa Florio rally, was killed on Saturday when his car crashed on a bend.
The 24-year-old Welshman was competing in this fifth leg of the International Rally Challenge with Irish team-mate Craig Breen.
Breen, who was driving the Peugeot 207, escaped unscathed from the accident.
In a statement, IRC organisers said: “On stage eight of Targa Florio-Rally Internazionale Di Sicilia there was an accident involving car number 15, Craig Breen and Gareth Roberts, which resulted in the stage being stopped to enable medical crews to attend the scene.
“Despite their best efforts, Gareth Roberts succumbed to his injuries and the remainder of the event has been cancelled as a mark of respect.”