Gardaí detected 680 drivers speeding in the first 24 hours of a clampdown on road offences over the Easter bank holiday weekend.
Between 7am on Thursday and 7am on Friday, the Garda said there were no deaths on Irish roads, but 680 drivers were detected speeding.
Among those caught speeding was a driver detected travelling at 147km/h on the N11 in Newcastle, Co Wicklow, which has a 100km/h speed limit.
Another car was detected at 82km/h in a 50km/h zone on the R600 in Belgooly, Co Cork.
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During this period, nearly 90 drivers were detected holding a mobile phone or not wearing a seatbelt.
As part of the operation, gardaí have increased the number of checkpoints along Irish roads and are conducting mandatory intoxicant testing.
Twenty-one people were arrested for driving under the influence of alcohol or drugs in the first 24 hours of the operation.
The clampdown will run until 7am on Tuesday, April 7th.
In conjunction with the Road Safety Authority, the Garda has urged road users to keep roads safe over the long weekend.
“Every member of An Garda Síochána on-duty this long weekend will be out conducting road traffic enforcement activity,” the Gardaí said in a statement.
“Gardaí will be placing a particular emphasis on detecting those driving under the influence of alcohol or drugs this weekend.
“At no point is it safe or acceptable to get behind the wheel of a vehicle after having an intoxicant like alcohol or drugs.”
Drivers have been urged to take extra caution around vulnerable road users, in particular pedestrians and cyclists.
A cyclist in his 20s died following a crash involving a truck in Dublin on Wednesday.
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