A man is in a critical but stable condition after a serious assault in Dublin.

A man in his 20s suffered serious injuries after being assaulted close to the Luas stop in Rialto just before 6pm

He is being treated for his injuries at St James's Hospital.

A 19-year-old man has been arrested and is being questioned at Kilmainham Garda Station.

Gardaí have appealed for witnesses who may have been on St James's Walk, near the Rialto LUAS stop, and witnessed this altercation or who can assist the gardaí to contact Kilmainham Garda Station on 01 6669700.