174 people have tested positive for Covid-19 in the latest official data -- most of them in the three counties put under lockdown.
It's the largest number of confirmed cases reported in Ireland in one day since May, and brings the total number infected to date in Ireland to over 26-thousand six hundred.
Another patient infected with the virus has also died.
There were 110 cases recorded in Kildare, 27 in Dublin, seven in Cork, seven in Offaly and six in Meath. The remaining cases were spread across 13 other counties, of which Mayo is one.
Cases have also been reported in neighbouring Galway and Roscommon after several days where none had been reported in the whole of Connacht.