Gardaí are investigating two petrol bomb attacks in the Moyross area of Limerick last night.
A device was thrown at a house in Dalmege Park at about midnight but did not explode. A short time later another device was thrown at a nearby house and went through the front window.
It damaged the sitting room of the house. There were no injuries in either incident.
Gardai believe the two incidents are related and may be related to ongoing feuds in the area.