A man has been released by detectives investigating the murder of Kieran Quilligan in Cork city.
The 47-year-old was reported missing last September.
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His remains were discovered last week.
Gardaí have not disclosed information in relation to the cause of death.
Two men have been arrested in the murder investigation.
A Garda spokesperson said on Monday that a man, aged in his 20s, has been released without charge, adding that a file will be prepared for the Director of Public Prosecutions.
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The second man, aged in his 30s, remained in custody at a Garda Station in Cork city on Monday.
The spokesperson added: “investigations are ongoing”.
