An incident at Ballakeighan during the opening lap of the Supersport race involving four riders caused the race to be red flagged.
Two riders, Conor Cummins and Tom Parkes were taken to Nobles Hospital for treatment.
Ivan Lintin later went to hospital under his own means for a check up, whilst the fourth rider, James Cowton is back in the paddock.
Further updates will be issued as information becomes available.
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