The driver was subsequently charged with road traffic offences.
Portlaoise Garda were alerted, at approximately 5.40am yesterday, to an incident of dangerous driving on the M7.
The driver of a large vehicle reversing from Toll Bridge all the way back to Junction 18.
The driver was stopped, arrested and subsequently charged with road traffic offences.
Anyone who may have witnessed the incident on M7 between Junction 18 and the Toll Bridge is asked to contact Portlaoise Garda Station on 0578674100.