Number 10 has announced that Boris Johnson will host a press conference in Downing Street at 6 p.m. this evening.
It comes in the wake of revelations that Downing Street hosted a Christmas party last year.
It has been alleged by government sources that the 'Plan B' of restrictions will be implemented 'as soon as this week'.
Mandatory vaccination passports for packed locations like nightclubs and concerts would also be reinstated.
Professor Chris Whitty, England's Chief Medical Officer, and Sir Patrick Vallance, the country's Chief Scientific Adviser, will be at the press conference to support Johnson.
Omicron strain, which is reported to be more transmissible than previous strains of the virus, has sparked mounting concerns.
In the UK, there are presently 568 verified cases, but the true number is likely to be greater due to the lengthy time it takes to do genetic sequencing.
Omicron cases are increasing every three days, with more than 1,000 new infections occurring each day, according to government advisers.
Prime Minister David Cameron is concerned that if he does not act now, he would regret it in the future, according to Sky News sources.
Although the variation is yet to injure a British person, ministers have insisted that Plan B limitations will not be necessary over the holiday period.
Authorities believe the Prime Minister may be trying to divert attention away from the most recent unpleasant issue to hit this administration.
Rumors that Sajid Javid will address MPs before the press conference have yet to be confirmed, and Downing Street has been unable to answer questions about the news conference's timing.
When London and the South East were under Tier 4 lockdown last year, Downing Street staff joked about holding a Christmas party.
On December 22, Johnson's former press secretary, Allegra Stratton, was filmed addressing questions at a faux press conference and has since resigned.
"It was cheese and wine, not a party," she jokingly told the No. 10 workers pretending to be journalists.
This morning, no ministers were accessible for broadcasters to interview. We don't know why this happened.
When asked about the relevance of the booster jab campaign, it is widely believed that Javid withdrew from interviews.
Photographers and reporters were unable to catch a glimpse of Johnson as he went about his daily exercise routine.
According to one insider, No.10's apparent media tactic of diverting the public resembles a dead cat.'
This afternoon's Prime Minister's Questions in the House of Commons was a no-brainer for the PM and his cabinet.
On December 18, Johnson stated that he had ordered the Cabinet Secretary to examine a non-existent party, but insisted that there was no party at all.
"I understand and share the anger up and down the country at seeing No 10 staff seeming to make light of lockdown measures," he said. "I can understand how infuriating it must be to think that people who have been setting the rules have not been following the rules because I was also furious to see that clip.
Apologizes unreservedly for the offence it has caused and apologises for the impression it conveys.
I have been repeatedly informed since these claims first surfaced that there was no party involved and that no Covid guidelines were broken.'