The youth failed a roadside drug test.

A 15 year-old has been arrested after being caught driving by Gardaí in Dublin.

The teenager failed a roadside drug test and was detained on suspicion of driving under the influence of cannabis.

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.”

Gardaí say investigations are ongoing.