The Boyle to Ballyfarnon L1013 road has reopened following a serious road traffic collision on Sunday morning.
The incident took place at Doon shortly after 9.15am.
It is believed three cyclists and a car were involved.
Two ambulances and an advanced paramedic car along with Gardai attended.
A man, understood to be the driver of the car, was arrested at the scene under Section 4 of the Road Traffic Act.