A man in his 60s, who was arrested after the body of another man (30s) was found at a house in Dublin early on Saturday morning, has been released without charge.Gardaí and emergency services responded to a call from a house on Brookwood Heights, Artane, shortly after 12.30am.The man in his 30s was treated at the scene but was pronounced dead a short time later.The man in his 60s, who was arrested at the scene and was questioned at a Garda station in north Dublin. A file is being prepared for the Director of Public Prosecutions, and investigations into the incident are ongoing.The scene remains preserved, and a postmortem examination is expected to take place later on Sunday.A senior Garda officer and family liaison officer have been assigned to the case, with an incident room set up at Clontarf Garda station.