Gardai are investigating the planting of a hoax explosive device in a Tipperary Town estate on Monday night.
The Defence Forces bomb disposal squad was called out to Aherlow Heights around 10pm after gardai received a report about a suspect device in the estate.
They investigated the device and discovered it was a hoax.
A spokesman for Tipperary Garda Station declined to say where the hoax device was placed in the estate.
He said were carrying out house to house enquiries as part of their investigation in to the incident and appealed to anyone with information to contact the station at (062) 51212.