A man in his 30s has been hospitalised after suffering a heart attack during a half marathon in Dublin.

The man was competing in the Clontarf Half Marathon in Dublin when he suffered the attack and collapsed.

ROSC achieved today on a runner in a half-marathon event in Clontarf. 30-something pt, VF arrest, immediate CPR 1/2 pic.twitter.com/tDuhraz6Bx

— Dublin Fire Brigade (@DubFireBrigade) July 9, 2016

He was attended to immediately by members of Dublin Fire Brigade and the Dublin Civil Defence. He underwent CPR and was shocked using a defibrillator.

The paramedics and first aid crew managed to resuscitate the patient after carrying out return of spontaneous circulation (ROSC) protocols.

The man was brought to Beaumont Hospital for treatment.