Gardaí are investigating a fire at a derelict house on the northside of the city on Friday evening.
Cork City Fire Service were alerted to the blaze on the Rathcooney Road in Banduff at around 20 past 7.
No one was injured.
In a statement to RedFM News, Gardaí confirmed they are aware of "an incident of criminal damage by fire" at the location.
Investigations are continuing.
