A woman in her 50's also suffered serious but not life threatening injuries.
A post mortem will be carried out today on the body of a pensioner killed in a road crash in Co. Laois.
The two car collision happened just after 4 o'clock yesterday on the M7 at Borris-in-Ossory.
The woman who was aged in her 80's died when the car she was driving hit another vehicle.
A woman in her 50's also suffered serious but not life threatening injuries.
Gardaí are appealing for any witnesses to the crash to come forward.

Calls for Increased Traffic Garda Presence Ahead of Bank Holiday Weekend
Over €2,000 Damage Caused in Vandalism at Athy Sports Ground
Weather Warning Issues Storm Dave Approaches Ireland
Fresh Blow For Metrolink As Programme Director Quits
Investigation Into Death Of Inmate In Portlaoise Prison
Intel Reclaims Control of Key Irish Chip Facility In Leixlip
€7m Worth Of Cannabis Seized In Athy