A man being questioned over the arson attack on the headquarters of the Health Service Executive (HSE) was released without charge late last night.
The man in his 40s was arrested after a fire that caused tens of thousands of euro worth of damage to the building in Cork City.
The fire at the Farm Centre on the Victoria Cross Road, Dennehy's Cross, broke out shortly after 11.20pm on Saturday.
Witnesses told gardaí they saw a man push an object through the letterbox of the building.
Within seconds, boxes inside the door were on fire with the blaze spreading to the reception area. The building was empty, and no one was injured.
The 190 employees were told to attend work as usual today despite extensive damage to the ground floor of the building.
