A man in his 20s has died in hospital following an accident on the N52 on the Birr side of Kilcormac on Friday morning.
The accident occurred approximately two kilometres outside the town at 5.35am and conditions were reportedly slippery at the time.
A second man was brought to Tullamore Hospital where he was treated for his injuries.
The road remained closed throughout the day yesterday as Gardai carried out an examination of the scene with traffic diverted via Rath.
The Garda Síochána Ombudsman Commission (GSOC) is seeking witnesses to the fatal Road Traffic Incident. The incident was referred to GSOC by the Garda Commissioner in accordance with section 102(1) of the Garda Síochána Act 2005. The incident involved a blue Mercedes Sprinter van and a black Nissan Almeira.
GSOC is requesting anyone who witnessed the incident, or anyone who may have information that may be of assistance to its investigation, to contact it on 1890 600 800.