Three people are due in court in relation to separate incidents of alleged dangerous driving during fuel protests in counties Louth and Cork.
Two people were arrested yesterday evening on the M1 after a number of articulated tractor units blocked traffic on the northbound carriageway after Junction 14.
Gardaí directed that the trucks move to the hard shoulder of the motorway.
In a statement, An Garda Síocháana said that following engagement between gardaí and the drivers of the two lead tractor units, both drivers were arrested.
They have since been charged and are due before Drogheda District Court later this morning.
Both tractors were also impounded by gardaí.
In a separate incident in Co Cork on Saturday afternoon, the driver of a tractor pulling a slurry tank was arrested after he failed to stop at a cordon checkpoint near Whitegate.
He was pursued by gardaí, who said he began driving erratically, serving in the opposite direction and endangering other road users.
The vehicle was stopped and the driver, who is aged in his 20s, was arrested.
He has been charged with a number of road traffic offences and is due before Midleton District Court on Thursday morning.