Three motorists in the same area were arrested after testing positive for the same drug in the space of two days.
Gardai in Limerick pulled over two of the drivers on Sunday and the third on Monday.
They subsequently failed a roadside drugs test after it showed they had cocaine in their system.
The three motorists were arrested on suspicion of drug driving.
A garda tweet said: "Limerick Garda RPU stopped 3 motorists over the last 2 days, all 3 arrested on suspicion of Drug Driving & Proceedings to follow.
"Never drive under the influence of an intoxicant. #SlowDown #SocialDistancing."
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