Gardaí in Dublin are investigating the stabbing of a man in the city overnight.

Gardaí have stepped up the number of armed patrols and checkpoints in Dublin after weekend violence that left one man dead and two others in hospital.

Gardaí are continuing to question three men following a shooting in Dublin yesterday afternoon in the Dunsink Lane area of Finglas.

A 22-year old man is due to appear before Dublin District Court later today charged in connection with the fatal stabbing of a Lithuanian man at the weekend.