A two-car road collision in County Louth kills a man and a woman in their 70s and leaves two other people seriously injured, according to multiple Irish outlets. The crash involves both vehicles, and the man and woman who died are reported to be in one of the cars. The incident also leaves the man and woman in the second vehicle with serious injuries, as described by the Irish Times, while RTE News and TheJournal.ie report that two other people are seriously injured. TheJournal.ie specifies the location and timing, saying the collision happens on the R173 at The Bush shortly before 3.10pm. BreakingNews.ie reports the deaths but does not add additional timing or location details beyond County Louth. The reports consistently describe the incident as a two-car crash and confirm the fatalities and the seriousness of the injuries. Authorities are not quoted in the provided summaries, and no cause of the collision is stated.