The attack happened on Saturday afternoon.
A 30-year-old man is due in court in connection with the stabbing of a 93 year old man in Co. Louth at the weekend.
The attack happened on Saturday afternoon in Blackrock.
The injured man remains in Our Lady of Lourdes Hospital where his condition is understood to be stable.
A suspect was arrested on Saturday night, he's due to appear before the Criminal Courts of Justice this morning.
Gardaí are continuing to appeal for witnesses to contact them.
