Gardaí are investigating two petrol bomb attacks in the Moneymore area of Drogheda overnight.
Three homes were damaged in the incident, with one house completely destroyed.
It is understood the occupants of the house targeted in the second attack managed to put the fire out themselves.
These latest incidents are believed to be related to an ongoing feud in the town.
Chief Fire Officer in Louth Eamon Wolfe has said last night's fire was probably the biggest fire his officers have seen in the ongoing feud in Drogheda.
Mr Wolfe said the fire was well ablaze when the fire service got there last night.
He said if the house there could have been fatalities if they house had been occupied, such was the extent of the blaze.
Mr Wolfe said the cause was still being established, but the blaze may have been caused by a bomb or an accelerant could have been used.
He said the incidents are of major concern to the fire service, not only in relation to public safety, but also in relation to the safety of the fire service.
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Meanwhile, an appeal for information has been issued in connection with a shooting that happened at Termon Abbey yesterday evening.
A man in his 20s was injured in the attack. He is believed to be a leading figure in one of the feuding gangs.
His injuries are not thought to be life-threatening.
Gardaí say that two cars were seen leaving the scene of the attack, a grey Peugeot 407, registration number 07-C-2620; and a grey Honda Accord, registration number 05-D-13539.
At around 8.10pm, the Honda Accord was reported on fire at Carstown railway bridge, Carstown, Termonfeckin.
At approximately 8.35pm the second car, a Grey Peugeot 407, was reported on fire at Starinagh, Collon.
Superintendent Andrew Watters of Drogheda Garda Station is asking anyone in the Elmwood Close area of Termon Abbey between 7pm and 8pm last night to contact gardaí.
He is asking anyone who may have around Carstown railway bridge, Carstown, Termonfeckin area between 8pm and 8.30pm or on the local around the area and who have dashcam footage to come forward.
Gardaí are still trying to establish the location of the Peugeot and the Honda Accordin vehicles, in the days prior to the shooting.
They are also asking anyone who was in Moneymore last night to contact them.
Chief Supt Christy Mangan has expressed his thanks to the wider community in Drogheda for their support and assistance over recent weeks, which he said has reduced tensions.
He Mangan said the gardaí are making every effort to prevent and detect these irresponsible criminal incidents.
He once again appealed to people to come forward with any information which will assist the gardaí in bringing the perpetrators to justice.