A man in his 20s has been stabbed to death in Clontarf in Dublin this morning.

The incident happened at 7.15am at a "low support hostel" operated by the Health Service Executive in the St Lawrence Road area.

The man was pronounced dead at the scene.

In a statement, the HSE said families are being notified and residents have been moved to alternative accommodation.

A man in his 20s has been arrested and is being held at Clontarf Garda Station.

It is understood the man presented himself at the garda station.

A technical examination of the scene is under way.

Gardaí have appealed for anyone with information to contact Clontarf Garda Station on 01 666 4800 or the Garda Confidential Line on 1800 666 111.

The facility involved is a low support, independent living residence for mental health rehabilitation.

The HSE is providing support to family and residents and is responding to the incident in line with its incident management framework.

Additional reporting Laura Hogan