In Tallaght, a local woman in her mid-30s was found by housekeeping staff when they went to clean her room at the Plaza Hotel at 3.30pm. The woman had checked in on her own on Saturday. She had not died of natural causes.
Forensic teams surveyed the site and a car was removed by detectives.
Meanwhile, a Garda probe was launched after the body of a man in his 60s was discovered at a house in Edenderry, Co Offaly, at 2.45pm. The scene, at Sister Senan Court, was sealed off for a technical examination.
The victim, named locally as Thomas ‘Toddy’ Dooley, who was in his mid-60s, was described as a quiet, inoffensive individual.
An Edenderry native, Mr Dooley lived alone at the house.
Gardaí said “a member of the public alerted the gardaí to this house. They were concerned about their neighbour.”
On arrival at the house, gardaí discovered a rear window open and “found a male lying on a couch with head injuries”.
The two discoveries came less than 24 hours after a 26-year-old Latvian man died of stab wounds in Portarlington, Co Laois.
The man had sustained injuries at a house on Spa St in the town.
Two men were arrested and were being questioned by gardaí last night. One man is in his early 30s and the other in his mid-40s.