64 motorists have been detected speeding by Gardaí in the first five hours of National Slow Down Day.
A driver in Tyrrellpass in Westmeath was caught driving at 149 kilometres per hour in a 120 zone.
In Dongeal, someone hit 87 in a 60 zone, while another in Wicklow was doing 137 in a 120.
Gardaí are urging motorists to slow down to reduce collisions and save lives.