A man in his 30s has been arrested following a serious assault incident in north Dublin.

A man in his 30s has been arrested following a serious assault incident in north Dublin.
The incident happened at an apartment complex off the Kilmore Road in Coolock in the early hours of this morning.
A man in his late 50s was taken to hospital with serious head injuries, however they are believed to be non life-threatening.
The man in his 30s was arrested later and is being held at Coolock Garda Station.
The scene has been preserved as gardaí investigate.