The R number across the United Kingdom is between 1.0 and 1.2, according to latest estimate by the Scientific Advisory Group for Emergencies (SAGE).
The R number is the average number of people each person with COVID-19 goes on to infect.
The last time it was above one in the UK was in early March.
The number of new coronavirus cases in the UK also continues to rise. On Friday, 3,539 cases were recorded, up from 2,919 the registered the day before.
According to British media, there has been a higher incidence of cases seen in people aged 18 to 24. In the UK there are also fears that the reopening of schools and universities will accelerate the spread of coronavirus.