The Irish Road Victims' Association (IRVA) has said that not enough is being done to bring down the number of deaths on Irish roads.
Vice President of the IRVA Leo Lieghio described the news that four pedestrians had been killed in three separate crashes since Thursday evening as "heartbreaking".
Yesterday evening, a woman in her 70s died after she was struck by a car in Co Carlow.
A few hours later, a man in his 60s died after being struck by a car in Co Meath.
It came just a day after two pedestrians, a husband and wife, were killed in a hit and run in Blanchardstown in Dublin.
While in Northern Ireland, two men were killed in a two-vehicle crash in Co Armagh earlier today.

Mr Lieghio said: "At this time of year, for so many (deaths to occur) in recent days, my heart goes out to the families, it's something no one wants to go through.
"I'm going to be here talking to you next year and the year after until we start doing something about this and the people that can do something about this, all they do is paper over the cracks and they are not taking action."
When asked what kind of measures he believed could make a difference Mr Lieghio said that the IRVA want "to see the doubling of penalty points".
He described the current system where "you get four chances before you are put off the road" as "crazy".
He also criticised judges for "handing down suspended sentences and giving people slaps on the wrist (for driving offences)".
"Government ministers need to start looking into the technology because the technology is out there, they have speed limiters, we have alcohol interlocking devices, we have all these cameras that can detect people without their seatbelts, (they need to) start forking out the money and doing what's needed to save lives," Mr Lieghio added.

The Road Safety Authority has proposed the introduction of a speed awareness course as an alternative to penalty points for some speeding offenders, potentially from next year.
The IRVA does not want to see courses introduced in lieu of penalty points but is proposing a "spin off" idea, which would see the introduction of mandatory road safety courses for people who loose their licence before they are permitted to drive again.
Mr Lieghio said that as part of these courses victims' families should be invited to "tell their stories" to road traffic offenders.
Mr Lieghio's 16-year-old daughter Marsia was knocked down as she crossed a road on 16 October 2005 and died later in hospital.
He said: "It just doesn't go away, it stays with you for the rest of your life, Marsia was only 16 and she never got to live her life.
"A pedestrian isn't going to kill a motorist but a motorist will kill a pedestrian very easily. A pedestrian hit by a car travelling at 30km per hour, they've a 95% survival rate but when (the speed of the car) goes up to 45 km per hour its reduced to 50%.
"Pedestrians are the most vulnerable road users out there, and people have to take care."
The IRVA offers free information and support services to victims of road traffic crashes and bereaved families and anyone affected can contact their helpline on 086 8634 194 or go to their website: www.irva.ie