Three people have been released without charge after being questioned by Gardai in Galway in connection with the murder of a Polish national.
Krzysztof Ciesielski sustained serious head injuries during an incident in Athenry last week.
The 40 year old died in hospital on Wednesday evening.
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A woman in her 30s remains in custody Galway.
A file has be sent to the Director of Public Prosecutions.
