A further four men have been arrested by gardaí investigating the murder of a 36-year-old in Bray, Co Wicklow, following the arrest of two other individuals.
William Moorehouse died in the playground at Ballywaltrim on Sunday night after he was stabbed several times.
A juvenile, two men aged in their 20s and a man in his 30s were detained following seven searches under warrant, gardaí said.
They are being held under Section 4 of the Criminal Justice Act 1984 at garda stations in the southeast.
It follows the arrest of two other men last night in connection with the investigation.
The men, aged in their 20s and 40s, were arrested in the Bray area for public order offences.
They are being detained under Section 4 of the Criminal Justice Act and can be questioned for up to 24 hours.
Gardaí are also carrying out further searches as part of their investigation and continue to appeal for witnesses or anyone with information to contact them.
Detectives believe that Mr Moorehouse was fatally stabbed after a fight had been arranged between members of the Travelling community who were in dispute.
However, they are treating this as an isolated incident and not part of a feud.
The Traveller mediation service, a partnership funded by the Department of Justice which works to mediate in conflicts involving Travellers, has been called in to assist.
The Garda National Bureau of Criminal Investigation is also assisting with the investigation.
A post-mortem examination is due to be carried out on the body of Mr Moorehouse later today.
The examination of the crime scene has now been completed, the cordon has been lifted and schools, the community centre and the Ballywaltrim library have now reopened.