A motorist was caught speeding at 190 kilometres per hour near Carrick-on-Shannon over the weekend.
The detection was made on the N4 at Aughamore, near Annaduff.
It was almost twice the speed limit of 100 kilometres per hour.
A total of 3,500 motorists were detected speeding over the St. Brigid’s Bank Holiday Weekend, the highest volume of detections was on Bank Holiday Monday, with over 800 detections.
Figures released by the gardai reveal 193 drivers were arrested on suspicion of driving under the influence of an intoxicant, nearly 400 were detected for driving while using a mobile phone and more than 660 vehicles were seized.
There were two fatalities, and 14 serious-injury collisions, resulting in 15 serious injuries over the weekend.
Sinn Fein TD Martin Kenny, who lives in Carrick, says the weekend's detections were very worrying:
