Three men in their 20s who died in a crash in Co Tyrone on Monday morning were among six people killed on Irish roads in just over 24 hours.
The three were named locally as Nathan Corrigan, Petey McNamee and Peter Finnegan. All died at the scene after a car collided with a lorry at the Omagh Road area of Garvaghy at 1.50 am.
Mr Corrigan played with Beragh Red Knights GAA club and Mr Finnegan with Clogher Éire Óg, which sent its “sincere condolences” to the families involved on Monday night.
A fourth man, also in his 20s, was in hospital on Monday and was being treated for serious injuries.
Tributes were paid to the young men on social media on Monday evening from friends and family.
Local SDLP MLA Daniel McCrossan called it "heartbreaking news" and joined others, including Deputy First Minister Michelle O'Neill and local Alliance Party councillor Stephen Donnelly in sending their condolences to all the families impacted.
West Tyrone MP Orfhlaith Begley said: “The scale of this tragedy has stunned the entire community, but everyone will rally around to support all those affected in what will be difficult days ahead.”
In Dublin, a man in his 80s died after the bicycle he was riding collided with a car in Ballyfermot on Monday afternoon.
The incident occurred on Killeen Road shortly before 1pm.
In Co Mayo, a man died following a two car collision on Monday evening.
The deceased was a passenger in one of the vehicles. The crash occurred around 5.35 pm at the entrance to Breaffy House Hotel on the Castlebar to Balla Road.
A number of other occupants in the crash vehicles were injured. Their injuries have been described as not life-threatening.
Gardaí are appealing for witnesses to these incidents also a fatal crash in Co Wexford on Sunday evening.
A man in his early 20s was killed and a woman seriously injured in the two-car collision at about 5.20pm at Ballintore, Ferns.
The man was the driver and sole occupant of one of the vehicles. The woman, aged in her 50s, was th driver of the other vehicle. She was seriously injured and was taken to St Vincent’s Hospital, Dublin, in a critical condition.