Two riders involved in serious accident at Ulster Grand Prix
Two riders have been involved in a crash during the National race at Thursday's Dundrod 150 motorcycling meeting.
The serious accident took place shortly after the fast Joey's Windmill section of the Dundrod course.
The two riders, whose identity has not yet been released, were taken to hospital after being treated at the scene.
The race was immediately red flagged.
A 40 minute delay was announced until the next race.
No more details have been released by the organisers on the conditions of the riders involved.
Belfast Telegraph Digital