A 24-hour Garda clampdown on speeding concluded at 7am this morning with the North West recording the worst speeding offences in the county.
Gardai have confirmed that 322 vehicles countrywide were caught driving in excess of the speed limit on 'National Slow Down Day'.
A car was clocked doing 128km/h in a 80 km/h zone in Cashel, Carndonagh yesterday which Gardai have concluded as being one of the worst in the country.
The highest was recorded in Sligo as a driver was caught doing 121km/h in a 50 km/h zone on the N17 at Ballynacarrow.
Another notable speeding offence recorded in Donegal included a car driving at 84km in 60kph zone while passing a primary school and also approaching a stop sign in Buncranna.
While conducting Operation Slowdown Gardai in Donegal detected a child unrestrained in the rear seat of a car.
They also detected three motorists using mobile phones while driving.
The annual operation covered over one thousand stretches of roads around the country.