Gardai had to shut down two platforms at Connolly station in Dublin city centre while Army bomb disposal experts dealt with a viable explosive device nearby.
As a result of an intelligence-led operation, officers found the device in the basement of a house in nearby Preston Street.
The street was immediately closed to traffic yesterday afternoon while gardai alerted the Army ordnance unit.
Train delays were confined to around 10 minutes while the platforms were closed.
Gardai said it appeared that the device had been left for collection.
Retailer jobs boost
Discount retailer Euro General has created 70 jobs with seven new shops opening.
The new outlets will bring to 80 the number of stores across the country.
Famous cliffs defaced
A SECTION of the Cliffs of Moher has been defaced by a graffiti artist. The graffiti was discovered in recent days on a remote section of the Co Clare cliffs close to Hags Head.
The identity of the culprit, who painted a 10ft by 7ft mural, has not yet been established.