The unnamed rider crashed during the ultra Lightweight/Lightweight event at Thursday's Dundrod 150 meeting which is part of Ulster Grand Prix bike week.

The incident led to the action being halted at the Dundrod circuit for around an hour.

There are no details yet on the condition of the rider.

When the race was restarted, Englishman James Cowton won the ultra lightweight event with his compatriot Christian Elkin taking the lightweight victory.

Earlier, Kent rider Danny Webb crashed during Ulster Grand Prix practice but while he did sustain injuries, they are understood not to be life-threatening.

The Ulster Grand Prix produces the fastest speeds of any road racing event in the world.

Earlier this year, English rider Simon Andrews died after sustaining injuries at the North West 200 motorcyling event which is also held in Northern Ireland.



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