Gardaí are appealing for information about separate attacks in Dublin that left two men in hospital during the weekend.
On Friday night, a 16-year-old boy was attacked at a bus stop in Drumcondra at around 9pm.
He is being treated at the Mater Hospital for his injuries.
While in the early hours of Saturday morning, a man in his 20s was stabbed in the Deansrath area of Clondalkin in west Dublin.
Gardaí are appealing for witnesses to either incident to come forward.