Two men have been arrested in connection with the murder of Baiba Saulite.
The men, aged 24 and 38, are being held at Swords and Malahide Garda Stations under section 4 of The Criminal Justice Act.
It is understood the two men were arrested in Mountjoy Prison this morning.
Ms Saulite (28), a Latvian national, was shot dead in the hallway of her home on Feltrim Road, Swords, Co Dublin, on the evening of Sunday, November 19th. Her sons, aged three and five, were asleep upstairs.
Gardaí believe the shooting was a contract killing carried out by a west Dublin crime gang for a foreign national.
Detectives have made several arrests in connection with the murder but no-one has been charged. A 26-year-old man from Finglas was arrested and released without charge in January. Two men were arrested in Dublin in December and questioned over the murder before being released without charge.