Galway Bay fm newsroom - Gardai are continuing to question four people in relation to the murder of a man in Athenry.
Krzysztof Ciesielski sustained serious injuries during an assault last week at Cullairbán estate in the town and died in hospital on Wednesday evening.
He had been living in Athenry with his partner and 4 children, who attend a local school.
Krzysztof Ciesielski who lived in Athenry with his family for a number of years, sustained serious head injuries during an incident outside a house at Cullairbaun Estate last Thursday night.
The row involved a number of Irish men and a small number of foreign nationals.
The 40-year-old Polish man, was taken by ambulance to the University Hospital Galway.
He remained on life support at the hospital for the past week, where his family and other relatives from Poland kept a vigil.
He was pronounced dead on Wednesday evening and a post mortem examination has revealed that he died as a result of head injuries sustained in an assault.
Last night, Gardai launched a murder investigation.
Two men aged in their teens and a woman in her 30's are being detained at Galway Garda Station and a man in his 40's is being detained at Gort Garda Station under Section 4 of the Criminal Justice Act.