Two men arrested earlier this week in connection with an investigation into the murder of Latvian mother-of-two Baiba Saulite have been released without charge.
The men, who are both from Lebanon, were arrested by detectives at addresses in the north and west Dublin suburbs of Raheny and Blanchardstown at 7.30am on Tuesday.
A file is to be sent to the Director of Public Prosecutions.
Ms Saulite was shot dead as she smoked a cigarette in the hallway of her home in Holywell Square, Feltrim Road, Swords, Co Dublin.
Her two young sons, Ali-Alexsandra (5) and Mohamed Rami (3), were asleep in the house at the time. Ms Saulite was buried in her native Riga last weekend.
Her estranged husband, Hassan Hassan (38), was refused bail to attend the funeral and look after the two boys.