Gardai have released the two men arrested earlier this week in connection with the murder of Latvian woman Baiba Saulite last year.
The pair, aged 19 and 23, were detained on Wednesday morning.
They were released last night and Gardai say a file is being prepared for the Director of Public Prosecutions.
Ms Saulite, a 28-year-old mother-of-two, was shot dead while standing outside her home in the Swords area of north Dublin last November.
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