Scotland has recorded one coronavirus-linked deaths and 2,067 new cases in the past 24 hours, according to the latest data.
A case of the new variant was recorded in NHS Lothian for the first time.
NHS Lanarkshire recorded four new cases in the same period and has 13 overall.
The two areas were the source of the outbreak in Scotland which emerged on Monday and was initially confined to cases linked to a single private event on November 20.
The Scottish Government said Public Health Scotland is aware of an “ongoing processing issue with UK Government lab tests which may impact on cases and tests” in the daily figures and investigations are under way to resolve the problem.
The death toll under the daily measure, of people who first tested positive for the virus within the previous 28 days, is 9,649, but the Scottish Government said registry office are generally closed at the weekend which can impact figures.
The daily test positivity rate was 9.6%, up from 7.6% the previous day.
There were 586 people in hospital with recently confirmed Covid-19 as of Saturday night and, of these, 45 were in intensive care.
So far, 4,352,104 people have received their first dose of a Covid-19 vaccination, 3,958,162 have had a second, and 1,859,735 have been given a third dose or booster.