The alleged incident occurred in the early hours of Monday morning.
Gardaí at Pearse Street, Dublin 2 are investigating an alleged sexual assault on a female which occurred in Dublin 2 in the early hours of Monday, 10 December 2018.
No arrests have been made and investigations are continuing.
The case is being investigated by officers at Pearse Street garda station.
LISTEN: You Must Be Jokin’ with Conor Sketches | Tiger Woods loves Ger Loughnane and cosplaying as Charles LeClerc