Two Travellers remained in garda custody last night after they were arrested over the robbery and false imprisonment of a factory worker early yesterday.
The victim, a 32-year-old Brazilian national, was walking home from his shift at 1.30am when the pair pounced.
One of the men jumped out of a van and held the factory worker at knifepoint in Cappagh Road, Finglas, before stealing his phone and wallet.
They then drove off but quickly returned to bundle their victim into the back of the van where they threatened to kill him if he refused to tell them his PIN number.
The thugs took him to Finglas village where they planned to force him to withdraw cash from an ATM.
However, gardai spotted the van and pulled it over.
"Three males were travelling in the van, including a 32-year-old being held against his will," said gardai.
"It's understood the man had his mobile phone and a wallet taken when confronted by the two occupants of the van moments earlier."
The phone and wallet were later recovered by gardai.
Lord Mayor Brendan Carr, whose constituency includes Finglas, said the discovery and arrests are "a clear sign that the gardai are doing their job".
"It's certainly a terrible and shocking thing that happened to that man. Nevertheless, it's a clear sign that local gardai are doing the work expected of them."
The two suspects, described as locals aged in their 20s, are thought to be behind a spate of crimes against foreign nationals.