Road safety chiefs have warned drivers to slow down over the bank holiday weekend after four people were killed within 24 hours.
A woman in her 40s died in a single-car collision in Ballinagun in Upper Kells, Co Meath shortly after midnight.
Two people, a woman who was driving and a man, believed to be in their 60s, died in a two-car crash on the N22 close to Lissarda village, Co Cork yesterday evening.
And a man walking in Killeigh, near Tullamore in Co Offaly, in the early hours of the morning was killed in a suspected hit-and-run.
Noel Brett, chief executive of the Road Safety Authority, appealed for motorists to take more care.
"Using the road is the most dangerous thing we do every day and the risks of being involved in a collision increase over a bank holiday weekend," he said.
"I would urge everyone to take greater precautions when using the road and not to be complacent about their safety."
Drivers are being urged to drive slower, to never drink and drive and to make sure all passengers are wearing a seatbelt. Cyclists and walkers are urged to ensure they are easily seen on the roads.
Mr Brett said: "But most of all, we need to expect the unexpected because all it takes is a split-second for tragedy to strike. If we all make a little effort to collectively take greater responsibility for our safety on the road this bank holiday weekend, we can prevent any further tragedies from happening."
Heavy rain is forecast for the weekend.