Gardaí in Granard are appealing for witnesses following yesterday evenings fatal traffic collision on the R198 a few miles from Longford town.
Gardaí say the accident happened at twenty past seven at Cloonagh near Drumlish.
The driver of one of the cars, a 34 year old woman, was fatally injured and pronounced dead at the scene.
Three others injured in the collision were removed by ambulance to Mullingar hospital and their injuries are not thought to be life threatening.
The body of the woman was brought to Tullamore hospital where a post-mortem will be carried out.
Garda forensic collision investigators examined the crash site last night and the road was reopened to traffic.