More than 15,000 coronavirus cases were overlooked in daily reports for the past week.
Yesterday, 12,872 positive tests were reported in the daily numbers, which was more than double in the last 24 hours.
The government attributed this to a technical problem and said the publication of a number of cases had been delayed.
They have now identified more than 15,000 cases that were not included in the daily reports between September 25 and October 2.
Today’s update brings the UK to more than half a million cases.
For example, 4,786 cases that were supposed to be reported on October 2nd were not included in the daily total on the dashboard on that day when the number was reported as 6,968.
Michael Brodie, Interim Chief Executive at Public Health England, said: “On Friday October 2nd, a technical data loading problem was identified overnight with positive laboratory results from Covid-19 being translated into reporting dashboards.
“After a quick investigation, we found that 15,841 cases were not included in the daily reported Covid-19 cases between September 25 and October 2. Most of these cases have occurred in the past few days.
“Each of these cases received the Covid-19 test result as usual, and anyone who tested positive was advised to self-isolate.
“NHS Test and Trace and PHE worked to resolve the issue quickly and immediately pushed all open cases into NHS Test and Trace’s contact tracking system. I would like to thank the contact tracing and health protection colleagues for their extra efforts over the weekend.
“We are fully aware of the concerns this may cause and further robust measures have been taken as a result.”