Gardaí say they have now located a man and three young children who were being sought in Co Wicklow.
It is understood the man was arrested after his car crashed in the Rathnew area.
The three children are said to be safe and well.
An appeal was issued earlier for the man and children, who were last seen at 10.30am in Woodview Estate in Ashford.
The man is now being questioned at Wicklow Garda Station.