No further Covid-19 restrictions are set to be imposed in Northern Ireland at this stage, First Minister Paul Givan said as he confirmed changes to self-isolation rules.
Mr Givan said the self isolation period for positive cases "will reduce from 10 days to seven days, subject to negative lateral flow tests on day six and seven. This policy will apply retrospectively and takes effect tomorrow."
The first minister confirmed the changes following a virtual meeting of the Stormont Executive today.
He said ministers agreed that no further restrictions should be introduced at this time.
The Executive will continue to assess the data as more information emerges, Mr Givan added in a tweet after the meeting.
Mr Givan said the approach is the right one at this time.
"This recognises that Omicron is now the dominant strain in Northern Ireland with over 90% of all new cases, and it is more transmissible, having a detrimental impact on the availability of staff within public and private sector organisations," he said.
"It is critical that we can continue to deliver those key services to the public and this new policy is the right approach at this time."
Deputy First Minister Michelle O'Neill urged people to follow public health advice to minimise the spread of the virus.
"We're clearly in a very difficult period and the Omicron variant is spreading rapidly throughout the community, and it now accounts for more than 90% of all of our Covid cases here," she said.
"We know that this variant is highly transmissible so it's really, really important that everyone takes steps to minimise the risk of transmission, so please take up the booster if you haven't already, limit your contacts with other people, if you're meeting up with others take a lateral flow test before you go, meet outdoors if you can, work from home if possible and wear your face coverings.
"We'll continue to monitor the situation and we're going to keep an eye on it very very closely and we will keep the public updated as more information emerges."
Ministers are to meet again on January 6.
Today, they heard that the Omicron variant was estimated to be accounting for 90 per cent of cases in the north.
Department of Health modelling data seen by the PA news agency, which was presented to ministers, indicated that while the Delta variant was expected to gradually decline, a “more modest Delta epidemic” could persist in parallel with a larger Omicron outbreak.
It set out that a peak in numbers would occur in early to mid-January/early February, with hospital admissions and occupancy peaking in late January/early February.
The extent of the peak would depend on the severity of illness with Omicron.
Officials were said to be closely monitoring data emerging from Northern Ireland, as well as the experience in England and Scotland.
Ministers were told that if Omicron was associated with illness as severe as Delta, “significant intervention” would be required to keep hospital inpatient numbers at less than 1,000.
But if the severity of Omicron was substantially reduced from that seen with Delta, close to an 80% reduction, current measures could be sufficient.
The latest restrictions, which came into effect on Monday, include table service only in bars and restaurants, two-metre social distancing in offices, the closure of nightclubs and a ban on dancing at hospitality venues, with the exception of weddings.
Under the new measures, people are also being asked to limit their social contacts, with the public being advised that only three households should mix together in a private home.
Last week, ministers agreed a £40 million grant scheme to support hospitality businesses affected by the latest Covid-19 restrictions.
