Why did a man get a heart attack in hospital?

An ambulance has been called to the scene of a heart-related incident in Dublin, with a man in critical condition.

The emergency services responded to the incident at the corner of St. Michael’s and Derry streets at about 10.30pm.

The man, believed to be in his 20s, was taken to the nearby Queen of Ireland Hospital for further treatment.

He has been described as being in his mid-30s.