A young teenage boy was arrested by Gardai on suspicion of drug driving in Dublin City after failing a roadside breath test.
The 15-year-old tested positive for cannabis while behind the wheel of a car, Gardai revealed on Twitter.
They stopped the vehicle after spotting the young driver near Dublin Castle and he was taken into custody.
A garda tweet said: "DMR Roads Policing, Dublin Castle, observed car being driven by a 15 year old youth who subsequently failed roadside drug test.
"Arrested on suspicion of driving under the influence of cannabis, blood specimen taken. Investigations are continuing."
Meanwhile, a motorist in Carlow disqualified from driving for six years tested positive for two drugs - after being nabbed for speeding.
A roadside breath test found opiates and cannabis in the driver's system.
This was after gardai stopped the motorist for travelling at 154km/h on the M9.
A garda tweet said: "Carlow Roads Policing Unit stopped a driver speeding at 154kph on the M9 motorway.
"The driver, who was already disqualified for 6 years, tested positive for drug driving following a roadside drugs test.
"Driver was arrested and charged. Court proceedings to follow."
