Members of the public on Dublin's Luas red line were surprised today when a passenger brought a piebald horse onto the tram at the Belgard stop in Tallaght.
Passengers were quick to take photos of the horse and its owner who were intending to travel towards the city centre.
However, the driver intervened and the horse was put off before the tram departed.
A spokesperson for the Luas said they do not allow horses on trams.
She said the only animals allowed are guide dogs and other dogs that are in appropriate sized carriers.