Gardaí investigating the murder of a man in his late 20s, whose body was found in Drumcondra on Saturday, have appealed for anyone who noticed "activity which drew their attention" in the Home Farm Road area over much of last week to contact them.
It is understood the man sustained gunshot injuries.
A man in his 30s who was arrested in connection with the investigation is still being detained at a garda station in north Dublin, where he can be held for up to seven days.
It is understood the body is that of 28-year-old Seán McCarthy from Poppintree, who was reported missing on 2 August.
The missing person appeal to trace Mr McCarthy's whereabouts has been stood down.
Gardaí this morning appealed for anyone who was travelling in the Home Farm Road area of Drumcondra and the surrounding area between the morning of Tuesday 2 August and last Saturday evening, and who "observed any activity which drew their attention" to come forward.
The apartment on Achill Road where the body was found remains preserved for a technical examination.
A post-mortem examination was carried out yesterday afternoon, however gardaí say the results are not being released due to operational reasons.
Gardaí said a family liaison officer has been appointed, and continues to keep the family of the man informed of details in relation to the investigation.
They have appealed for anyone who may have information that can assist them to contact Ballymun Garda Station on 01 666 4400, or any garda station.