After an attack in a hostel in Dublin in the early hours of the morning, a 24-year-old man has died.

A murder investigation is now underway following the attack at Harrington House on the city centre’s southside.

An arrest has been made and a 41-year-old is now being questioned at a Dublin garda station.

Gardaí have reported how news initially reached them at 4.45am of a man with serious injuries at the hostel on Harrington Street.

The 24-year-old, who is believed to be from Clondalkin, died from his injuries at St James's Hospital.

It appears the victim may have been stabbed after an argument with another resident at the hostel.

Although both men were staying in separate rooms, one appears to have entered the other’s room where the row then took place.

The detained man may be questioned for up to 24 hours, and has so far received medical attention.

The 41-year-old is previously known to gardaí and is from west Dublin.

The scene at Harrington Street has been preserved for examination by the Garda Technical Bureau, and a post-mortem examination is due to take place later today.

Gardaí have asked that anyone with information come forward, and contact Kevin Street Garda Station on 01 666 9400, the Garda Confidential Line on 1800 666 111, or any garda station.