A man has died after he was hit by an articulated lorry in Co Monaghan.
It happened on the N54 between Monaghan and Clones in the townland of Bandrum, north of Monaghan town, just after 11.00am on Saturday morning.
The man, aged in his early 20s, was taken to Tallaght University Hospital in Dublin in a serious condition.
However he has since passed away.
The driver of the lorry was uninjured.
Diversions were put in place from the Monaghan side at Threemilehouse Road R189 diverting to Newbliss, Clones - and from Clones side at the Rosslea Road R187 to Sweeney's Cross onto Scotstown to Monaghan.
Gardaí are continuing to appeal to road users who may have travelled on the N54 between Monaghan and Clones between 11.00am and 11:30am - particularly anyone who or may have dash cam footage - to contact Monaghan Garda station on 047-772-00, the Garda Confidential Line at 1800-666-111 or any Garda station.
This is the sixth death on Irish roads in less than 24 hours.
Two people died following a crash in Co Cavan on Friday night, while three others were killed in a crash in Co Louth early on Saturday morning.