Gardaí at Mountjoy investigating the death of a 37 year old female yesterday 19/5/12 (Press Release refers) have arrested a 44 year old man in connection with this investigation. 
He was arrested this afternoon (20/5/12) in Dublin City and is currently detained at Mountjoy Garda Station under Section 4 Criminal Justice Act 1984. 
 
Garda Press Office
Gardaí from Mountjoy Garda station attended a residence at Upper Sherrard Street, Dublin 1 this morning (Saturday 19th May) at approximately 11am after receiving reports concerning a female (aged 37) with injuries. 
She was removed to the Mater Hospital were she subsequently died. 
All circumstances surrounding her death are being investigated. A post-mortem is due to take place later on this afternoon. There are currently no plans to hold a press conference, and there have been no arrests.