Three people have been arrested by gardaí in connection to an arson attack on a former pub in December.
As part of this investigation, four residential properties were searched under warrant on Thursday morning.
The fire broke out in a disused pub on Thorncastle Street on New Year's Eve, which had been earmarked to be used to house homeless families.
Anti-immigrant protests were held at the building in response to false claims that it was to accommodate asylum seekers.
Two men, aged in their 30s and 50s and a woman in her 20s were arrested and a number of items of evidential value were seized, including electronic devices, in the course of the operation.
The woman has been released without charge, while the two men remain in Garda custody.
An Garda Síochána continues to appeal to anyone with information in relation to this investigation to contact Irishtown Garda Station 01 666 9600, the Garda Confidential Line on 1800 666 111, or any Garda Station.
An Garda Síochána appeals to any person with any information on any other reported incidents of arson to contact An Garda Síochána either through the Garda Confidential Line on 1800 666 111, or any member of An Garda Síochána.
