Level 3 Covid-19 restrictions are now in place across the country for the next three weeks.
People are asked not to travel outside their county, while dining inside restaurants and cafes is banned.
Last night, Tanaiste Leo Varadkar told the Fine Gael Parliamentary party that a short 'circuit-break' lockdown, like that proposed by NPHET at the weekend, is being considered.
Traffic jams are to be used by Gardaí from this morning to discourage people making unneccessary journeys.
Operation Fanacht came into force at midnight across the country with 132 checkpoints a day on main roads, while there will be thousands more in towns and villages.
One further death was recorded yesterday evening from Covid-19, with 432 new cases.
111 of the new cases were in Dublin, 51 in Donegal, 41 in Cork, 32 in Clare and the remaining 197 are located across 20 counties.
Chief Medical Officer Dr. Tony Holohan has warned that it is essential that there is a broad societal effort over the coming weeks.
He said every one of us has the power to interrupt the spread of this virus, and now is the time to use it.