You may have spotted the Covid Alert Level on the official app go up from medium to high.

Even though Richmond's coronavirus infection rate has been accelerating throughout the whole of October, the alert level did not increase until this weekend.

So why is this and what does 'high' mean?

The alert level on the NHS Covid-19 app relates to the three-tier system of local lockdowns that the government is using to tackle the virus.

The whole of London (including Richmond) moved into Tier 2 at 00.01am on Saturday, October 17.

Read more:

Full story and reaction as Richmond faces Tier 2 restrictions

What does the new NHS COVID-19 app do?

Find out exactly how many covid cases there are where you live

In Tier 2 residents cannot spend time with someone from another household in any indoor setting, including pubs and restaurants.

The app now tells users: "Coronavirus cases are high in your area.

"Your area has some extra local restrictions in place.

"Find out more about the measures that apply in your area to help reduce the spread of coronavirus."

If you click 'find out more', you'll be taken to the gov.uk website where you can read the current rules and important information such as going to work, childcare, travel and moving home.

NHS Covid-19 app

If you haven't done so already, download the NHS Covid-19 app now.

As well as easy access to current guidance, it lets you check into a venue and you will receive a notification if you have come into contact with someone who has tested positive.