A 60-year-old walker has died after being hit by a car - the third pedestrian killed on the roads in as many days.
The latest victim was struck in Moyvalley, Co Kildare, at around 5.45pm yesterday, said gardai.
The 29-year-old female driver of the car was uninjured in the collision.
The man was pronounced dead at the scene and his body taken to the mortuary in Naas, Co Kildare, for a post-mortem examination.
A forensic examination is being carried out at the crash site, said investigators.
All three pedestrians killed since Monday have been struck in the early morning or early evening, when it was dark.
On Tuesday, an 86-year-old woman died after being struck by a car while walking on the N15 road at Cartron, Bundoran Road in Sligo, at around 6.40pm. No other injuries were reported in the collision.
A man in his 70s died after a car hit him on the N17 at Claremorris, Co Mayo, on Monday. The crash happened at around 7.30am and the man was pronounced dead at the scene. The driver of the car was uninjured.
The Road Safety Authority (RSA) said it is concerned at the sharp increase in deaths among vulnerable road users in Ireland.
"So far this year, there have been 39 pedestrians killed on our roads compared to 28 in the same period last year," a spokesman said.
"We would advise vulnerable road users to wear high visibility clothing and to use a torch, particularly in rural areas where there is no street lighting.
"We would also appeal to motorists to slow down and always be vigilant of pedestrians."
Studies have shown that pedestrians have a 50% chance of survival if they are hit by a car at 50kph, according to the RSA.
The chance of survival rises to 90% if a victim is struck at 30kph.