A man has been arrested in connection with the hit-and-run that left a 17-year-old girl fighting her life.
Tara Houlihan was found with severe injuries at 3.50am on Saturday, in the Co Wicklow village of Kilcoole.
She currently remains in a critical condition at Beaumont Hospital. A male from the Greystones area voluntarily presented himself to Bray Garda Station yesterday morning and was interviewed for a number of hours.
He was subsequently arrested and is currently being detained under Section 4 of the Criminal Justice Act at Bray Garda Station. A silver Toyota has also been seized.
A senior source told the Herald that investigating gardai are satisfied that no drink, drugs or speeding were a factor in the incident.
Gardai are describing the early morning collision as "a very tragic and sensitive case" and have said they are no longer looking for any suspects to come forward.
The teenager is believed to have been on her way home from a party when she was hit by the vehicle.
The driver of the next car that arrived on the scene found her critically injured on the roadside minutes later and raised the alarm.
She was only around 500 metres from home when the incident happened, and the local community is said to be in shock at what happened.
"This is just devastating and whoever did this should come forward now," said local councillor Tom Fortune.
The victim and her family were prayed for at Masses in Kilcoole on Sunday.
The stretch of road where the incident happened was closed for a time to facilitate a forensic examination by road collision investigators.
Gardai in Bray have said the car involved travelled northbound through Kilcoole village at 3.45am from the direction of Newtownmountkennedy towards Greystones and Eden Gate.