Gardaí are seeking witnesses to three separate assaults which took place in Dublin's city centre in the early hours of the morning.
The incidents took place on D'Olier Street and Fleet Street between 2.30 am and 3.00 am. The three male victims, all in their late teens and early 20s, received knife wounds to their faces.
Gardaí believe the same assailants were involved in each of the incidents.
Anyone who was in the D'Olier Street/Westmoreland Street and Fleet Street/Temple Bar area between 2.30 am and 3 am, or taxi drivers who picked up two male passengers in the Temple Bar area are asked to contact Pearse St Garda Station at 01 666 9000.