A third person has been arrested as part of an ongoing investigation into the murder of Timothy Hourihane in Cork last October.
Mr Hourihane was found unconscious close to his burning tent on a green area at Mardyke Walk in Cork city on October 13 2019.
A woman in her 30s was arrested in Cork on Wednesday morning by investigating gardai.
She is currently detained under section four of the Criminal Justice Act, 1984 at the Bridewell Garda Station and can be held for up to 24 hours.
The investigation is ongoing.