Gardaí arrest woman in Waterford murder investigation

Gardaí have arrested a third person in relation to the murder of 60-year-old Joe O'Brien in Waterford city on Monday.

The 38-year-old woman was arrested at midday, and is being detained at Waterford City garda station under section 4 of the Criminal Justice Act.

Earlier today, 39-year-old Michelle Hynes, of no fixed abode, was charged with assault causing harm at Waterford District Court.

Yesterday, 47-year-old Pat Keating - with an address at 11 Moyne House on Grattan Quay, Waterford - was also charged with assault causing serious harm.

Both have been remanded in custody to appear before the court again next Tuesday.