ALL major mobile networks in the UK have gone down or are having problems, leaving millions of British workers struggling to work from home.

There has been a spike in the number of office workers staying home to work after Prime Minister Boris Johnson urged people to avoid all unnecessary travel.

O2 says it is aware some users are having difficulties with their voice network and that they are investigating the issue.

The Argus:

Problems with O2 mapped

The first issues were reported to Down Detector at about 9.14am with concerns raised from across the country on all major networks including Vodafone, O2, 3, Virgin and EE.

O2 said in a statement that updates on progress to fix the network would be shared as soon they are available.