Across the country, people will not be allowed to go to other people's houses or gardens.
The Cabinet has agreed a nationwide ban on all household visits (including gardens) from tomorrow night (15 October).
The ban will apply to all household visits except essential visits or childcare-related visits.
Leo Varadkar said that going into people's houses or gardens for a cup of coffee is the type of thing that must stop, saying: "All of those things have to stop. Because if those things don't stop, the virus can't be stopped."
He also accepted that this will be particularly difficult for those who live alone, saying that they can still meet outdoors in public areas.
Wednesday night also saw Donegal, Cavan and Monaghan move to Level 4 restrictions, while other border counties (Louth and Leitrim) will remain on Level 3 with the rest of the country.
Taoiseach Micheál Martin announced the news on Wednesday night, saying: "The picture emerging in Donegal, Cavan and Monaghan is worrying; the impliciation for hospitals and public health in those counties is obvious".
Under Level 4, gyms, pools and leisure centres will close.
No matches or sporting events are to take place.
Non-essential retail will also close across the three counties, while there will only be a maximum of six people allowed at weddings.
You can see exactly what Level 4 consists of, in detail,
here.
