Two Dublin men have foiled what appears to be an attempted car-jacking in Clontarf.
The incident happened around 10am this morning.
A man has since been arrested and gardai are appealing for witnesses.
A number of passers by came to the assistance of a woman driver this morning, when a man approached her and tried to force her from her car on the Alfie Byrne Road in Clontarf.
At least two people tackled the man and one forced him to the ground where they detained him, while the authorities were alerted.
Gardai say they responded to reports of an attempted car-jack shortly after 10am.
A man in his thirties has since been arrested and is currently detained at Clontarf Garda Station - under section 4 of the Criminal Justice Act.
No one was injured in the incident.
An investigation is on-going and gardai are appealing for witnesses.