In a joint statement issued by Motor Sport Ireland and Donegal Motor Club, the clubs said it was “with deep regret” they announce a fatality has occurred today.
The Donegal Motor Club are liaising with the family of the competitor involved.
The three-day annual event takes place in June each year and attracts large numbers of spectators and in excess of 200 competitors took part in this year’s event.
In the joint statement, a spokesperson said: “The relevant authorities have begun a full investigation into the incident and will be assisted by Motorsport Ireland and Donegal Motor Club. Motorsport Ireland and its affiliated clubs are recognised internationally for operating to the highest standards of motorsport safety for competitors and spectators in line with the best practice of the FIA.
“The entire motorsport community extends its fullest sympathy to the family of the bereaved.”
They said more information may follow later this evening.