An investigation is under way into a possible link between a collision on the M7 motorway and the alleged false imprisonment of a woman.

Gardaí said a man was taken to Naas General Hospital with non-life threatening injuries following a collision near Ballybrittas in Co Laois.

It is understood the man had exited a car on the central median of the motorway and was struck by another vehicle at around 1.30pm.

Gardaí are hoping to speak to the man after he is treated for his injuries.

They are investigating whether the collision is connected to an earlier incident when a woman escaped from a moving car near Portlaoise Prison in the Co Laois town.

It is believed the woman was being held in the car against her will and fled the vehicle when it slowed in traffic.

She is said to be extremely traumatised following her ordeal.

Gardaí are asking anyone who witnessed the incident at Portlaoise Prison or on the M7 to contact Portlaoise Garda Station on 057 8674100, the Garda Confidential line on 1800 666 111 or any Garda station.