The man arrested yesterday in connection with the death of another man in East cork has been released without charge.
Gardaí are continuing their investigations into the death of a Lithuanian man and are preparing a file for the Director of Public Prosecutions.
The 29-year-old was found dead at around 7am yesterday morning at a farmhouse in the Shanavagoon townland, near Ladysbridge.
It is understood he had been visiting the house but had been living in Cork for many years.
A man in his late 20s and originally from eastern Europe was being questioned at Cobh garda station. He was arrested and was held under Section 4 of the Criminal Justice Act 1984 but has since been released.
The dead man's body was removed to Cork University Hospital where a post mortem examination on the remains was concluded at 6pm.
The body can be held for up to five days under the Coroners Act.
A garda spokesman said that officers are "investigating an unnatural death" and said that "all possibilities are being examined".
The area was sealed off all day for a forensic investigation of the scene.