A man being questioned over the death of Joseph O'Callaghan in Cork has been released without charge.

The body of the 66-year-old was discovered on Monday at his home in Douglas.

A forensic examination has been carried out at the scene.

An altercation was overheard at the property the previous night.

A 21-year-old man handed himself into gardaí on Monday afternoon.

The man had been detained at Togher garda station and has been released.

A file will be prepared for the Director of Public Prosecutions (DPP).

Additional reporting: Jack Quann