It happened shortly before midnight last Thursday in Daingean.
Gardaí are appealing for witnesses following a crash last week in Offaly.
The single-vehicle collision, involving a jeep, happened shortly before midnight on Main Street in Daingean last Thursday.
Two female passengers of the car in their 20's were brought to Midland Regional Hospital Tullamore for treatment of serious but not life-threatening injuries.
The driver of the jeep failed to remain at the scene, and a technical examination of the scene was completed by Garda Forensic Collision Investigators.
Gardaí are particularly interested in the movements of a white 172L registered Toyota Hi-Lux in the area at this time.
Gardaí are appealing to anyone with dash-cam footage travelling in the area between 8 and 11:50 pm to contact Tullamore Garda Station or the Garda Confidential Line.
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