Two appeals for witnesses have been issued for separate incidents in Galway city over the weekend.

A 22-year-old man is in a critical condition following an alleged assault outside a fast food outlet at around 3.30am this morning.

It is understood the man fell during an altercation on Shop Street and sustained a serious head injury.

He was taken to University Hospital Galway and later transferred to Beaumont Hospital in Dublin.

In a separate incident, an 18-year-old man is being treated in hospital after being stabbed in the stomach.

The incident occurred at around 2.30am on Wood Quay and a man has been arrested.

The injured teenager is being treated at University Hospital Galway.

Gardaí have appealed for witnesses to both incidents to contact Galway Garda Station on 091-538000, the Garda Confidential Line on 1800 666 111 or any Garda station.