Update at 8pm: The army says it has now confirmed it was a viable improvised explosive device. Evidence from the scene and the object itself have been given over to investigating Gardaí this evening.
The bomb squad has removed a suspect device found near the N4 roadway in Longford.
The Defence Forces said it was not yet known whether the object - found in the Shroid area - was viable.
The object now been removed to a safe military location for examination and the scene declared safe.
Traffic diversions which had been in place on the N4 between Edgeworthstown and Longford Town have been lifted.
An investigation has been launched.