A shocking video showing a sulky race on a busy motorway has been widely condemned by both Travellers' rights and animal welfare organisations as "appalling "and "unacceptable".
The video on social media shows a pair of horse-pulled sulky carts sandwiched between a convoy of cars.
Young men are seen hanging out the windows, whooping and cheering on the race taking place amid normal traffic on the busy N7.
Gardaí at Rathcoole are investigating and seeking witnesses to the scene to contact them or their local Garda station.
The Travellers' rights organisation Pavee Point said it was "appalled" by the incident, describing it as "completely unacceptable and endangers other road users and indeed animals and participants themselves".
"This misuse of a public road is shocking and Pavee Point calls on anybody contemplating similar activities to stop and consider the safety of other road users," the organisation said in a statement yesterday.
"Sulky racing, which is a long standing tradition within and outside the Traveller Community, should not be confused with the actions of the participants in this incident," the statement read.
Dr Andrew Kelly, chief of the Irish Society for the Prevention of Cruelty to Animals (ISPCA), said the incident was not only an alleged act of animal cruelty endangering the horses involved, but a danger to anyone else involved.