Army bomb disposal teams have made safe what were described as "viable" explosive devices found in Limerick and Dublin overnight.
In Limerick, the Defence Forces sent a team to a derelict property in Tory Hill, Croom in response to a request from gardaí.
A Defence Forces spokesman said the team arrived on scene at 8.45pm and made a viable improvised explosive device safe by means of a controlled explosion.
The scene was declared safe at 11.15pm and the remains of the device were handed over to gardai for their investigations.
In Dublin, a bomb disposal team was sent to the Basin Street Flats complex in Dublin 8, also in response to a request from gardaí.
The team arrived on scene at 6.30am and made a viable device safe. There was no controlled explosion carried out.
The scene was declared safe at 7.20am and the device was removed to a military installation for further examination, the Defence Forces spokesman said.
The number of explosive devices, including pipe bombs, dealt with by the Army and Garda has increased significantly this year.
While there was a sharp and sustained increase four years ago in the number of pipe bombs and other devices being used, mostly by gangland figures, the situation has worsened further in 2011.
If trends in the first eight months continue to the end of the year, the number of call-outs for the Army’s bomb disposal experts will have passed 200 for the first time, a doubling of the rates seen as recently as 2007.