As we wait for the prime minister to speak at Downing Street, here's a reminder of the key developments in the UK today:

• Schools in Scotland and Wales will be closed by the end of this week, the governments in those nations have said
• Northern Ireland schools are closing today
• The UK Education Secretary Gavin Williamson is due to speak to MPs on the situation for schools in England shortly
• Meanwhile, Labour's Lloyd Russell-Moyle has become the third MP to test positive for Covid-19., external
• The coronavirus death toll in the UK has risen to 104 - up from 71 the day before
• The Glastonbury music festival and the Eurovision song contest are the latest events to be cancelled

Northern Ireland has taken the decision to close schools as of 17:00 GMT today.

It follows decisions by both the Welsh and Scottish governments to close their schools at the end of the week,

UK Prime Minister Boris Johnson is due to start his daily press conference at 17:15 GMT after a slight delay.

The UK's Education Secretary, Gavin Williamson, is expected to give a statement simultaneously in the Commons.

We believe both politicians will talk about plans for English schools after governments in Wales and Scotland said they would be closing them down at the end of the week.

Image source, Getty Images

We've just been tuning in to a press conference from the World Health Organization.

These are the key takeaways:

• Confirmed cases of the virus have now surpassed 200,000 globally
• There have been at least 8,000 deaths around the world
• The vast majority of confirmed cases - 80% - have occurred in Europe and the Western Pacific region, which includes much of Asia
• Social distancing measures, such as closing major events, can help slow transmission and reduce pressure on the health system
• "But to suppress and control epidemics, countries must isolate, test, treat and trace," the WHO chief said
• The WHO and its partners are organising a multi-country study - known as the Solidarity Trial - in which untested treatments are compared with each other
• It has also advised people in Africa to avoid mass gatherings and prepare for an increase in cases

UK Prime Minister Boris Johnson has posted an upbeat message to the country about coronavirus.

"This enemy can be deadly, but it is also beatable - and we know how to beat it," the message reads.

The prime minister is due to give his daily news conference shortly (at 17:00 GMT).

Earlier today we heard that schools in Scotland and Wales would close by the end of the week.

In England, the situation remains unchanged, but many heads are struggling with staff shortages as more and more teachers self-isolate.

The education secretary is due to speak in the Commons at 1700 GMT, and is expected to update MPs on his plans then.

This is likely to overlap with the daily press briefing from PM Boris Johnson - also scheduled for 1700 GMT - and we will be bringing you the most important lines from both of these events as quickly as we can.

The government has been resisting calls to close schools, in part because of the impact on the NHS - many of those needed on the frontline are also parents that will need to stay home to care for their children.

Image source, Getty Images

The coronavirus death toll in the UK has risen to 104 - up from 71 the day before.

NHS England said a further 32 people had died in England after testing positive, while a further death was reported in Scotland.

The NHS said the patients were aged between 59 and 94 years old and had underlying health conditions.

Jonny Dymond
BBC royal correspondent

Image source, PA Media

Buckingham Palace says, contrary to some media reports, the wedding of Princess Beatrice and Edoardo Mapelli Mozzi has not been cancelled.

In a statement, the palace said: "Princess Beatrice and Mr Mapelli Mozzi are very much looking forward to getting married but are equally aware of the need to avoid undertaking any unnecessary risks in the current circumstances."In line with government advice for the UK and beyond, the couple are reviewing their arrangements for 29 May."They are particularly conscious of government advice in relation to both the wellbeing of older family members and large gatherings of people.

"Therefore, the planned reception in the Buckingham Palace Gardens will not take place. The couple will carefully consider government advice before deciding whether a private marriage might take place amongst a small group of family and friends."

We're listening to President Trump speaking now and we'll bring you any major developments from his presser.

Just minutes ago, in New York, Governor Andrew Cuomo announced a new order that businesses must not have more than 50% of their workforce reporting to work outside of their home.

Essential businesses, like healthcare and food services, are exempt.

“Let’s maintain the public health, we’ll figure out the economy afterwards,” Mr Cuomo said, noting that the order would end as soon as the spread of the virus was under control.

President Trump has dispatched the USNS Comfort, a Navy hospital ship with a capacity of around 1,000 beds, to New York harbour. The US government will also be assisting with retrofitting existing hospitals and creating mobile hospitals to care for hundreds of people.

New York has tested some 14,000 people, according to the governor, and currently has the most confirmed cases in the nation.

Tara McKelvey
BBC News, Washington

I’m here at the West Wing, and journalists have been asking White House adviser Kellyanne Conway why the president refers to a “Chinese virus” when talking about the pandemic.

“He’s talking about where it’s from,” she says and gives a small shrug.

Meanwhile White House officials are checking temperatures to make sure that none of us have the virus. Mine is 93F.

“A little chilly,” an official tells me. My temperature was checked again by someone else, and afterwards I received a sticker with a red circle: I’m cleared for the Coronavirus Task Force briefing.

There is plenty of space for each of us here in the briefing room, and plenty of time before it begins to consider some facts: there are more than 6,360 cases in the US, and nearly one in five families has experienced a layoff or a reduction in wages.

Meanwhile the president has been trying to explain to people that he is managing the crisis in a responsible way, but not everybody is convinced.

Mr Trump has just begun a news conference at the White House.

Sarah Rainsford
BBC Moscow Correspondent

Russia now has multiple commissions and working groups dealing with the coronavirus epidemic. President Putin visited a brand new ‘control centre’ only this week and officials constantly stress the need for "maximum transparency".

But any briefings are statements, not press conferences, and so far only state media have been invited.

Meanwhile, Russia says it’s conducted well over 100,000 tests with only 147 positive results.

Officially, that’s down to the country’s "timely" intervention when the epidemic first emerged in neighbouring China, with a clear suggestion that Europe somehow messed things up.

But some experts suggest the local Covid-19 test is less sensitive than elsewhere, giving misleading negatives. And both social media talk, and talk on the streets, suggest plenty here doubt the official statistics - and worry.

Image source, Getty Images

Tom Edwards
Transport Correspondent, BBC London

This isn’t official but I have now been told by a number of sources that Transport for London's (TfL) Night Tube isn’t going to run this weekend.

Leisure travel has dropped massively and the thinking will be to get the night tube drivers to help operate the contingency timetable that TfL are devising to keep the Tube running.

Image source, Getty Images

As the UK government encourages "social distancing", older people are facing the prospect of being told to stay at home for weeks.

But what if a parent or older person in your life doesn't already have access to video calling tech? And how best to connect them if they're ready to try?

You'll find some answers in this article from our tech team.

Will Ross
Africa editor, BBC World Service

The first recorded death from coronavirus in sub-Saharan Africa has been confirmed by Burkina Faso. The victim, 62-year-old Rose Marie Compaoré was a vice president in Burkina Faso's national assembly and had diabetes.

Experts are warning that already strained public health systems could easily become overwhelmed. So governments are taking steps which they hope will slow the pace of infection.

Nigeria says that from Saturday, it will stop arrivals from any country where there are more than 1,000 cases of the virus. Many African countries have closed schools at an earlier stage than happened in much of Europe.

If you were reading this page yesterday you'll remember that we brought you news from both sides of the Atlantic about the major financial packages governments were announcing to try to stave off the economic effects of the coronavirus.

It seems investors are not convinced. Financial markets have tumbled today.

The Dow led the declines in the US, falling more than 4%, while the S&P 500 and Nasdaq dropped more than 3%.

The FTSE 100 index of top UK firms fell more than 3%, with aerospace, travel and housing firms among the hardest hit.

The pound meanwhile fell to its lowest level against the dollar in more than three decades, trading at $1.18.

You can read more from our business team here.

Image source, Getty Images

In case you're just joining us, here's a roundup of some of the major developments so far today:

• More than 200,000 cases of coronavirus have been confirmed around the world since the outbreak began, and more than 8,000 people have died.
• In the UK, more than 700 cases have been reported in the last 24 hours, bringing the total to more than 2,600. Both Scotland and Wales have announced the closure of schools, and a decision about England is "imminent", according to the government
• Spain has closed all hotels nationwide as it grapples with its own outbreak, centred largely in the capital Madrid.
• The European Union has begun a 30-day ban on travellers entering from outside the bloc. EU leaders have also agreed that internal borders that have been erected in recent days should come down.
• Meanwhile the US-Canada border - the world's largest land border between two countries - is set to close. Details have yet to be announced, but the leaders of both countries have confirmed it is taking place.
• Nigeria has placed a travel ban on people coming from 13 countries worst affected by coronavirus as five new cases are recorded in Africa's most-populous nation.

• Organisers have cancelled the UK's Glastonbury Festival and the Eurovison Song Contest, citing concerns for public health

Image source, Getty Images

A small number of staff at the UK prime minister's office are self isolating due to symptoms of the coronavirus, the BBC's political editor Laura Kuenssberg reports, external.

She understands none of those isolating have been in close proximity to Boris Johnson.

People with symptoms are advised to isolate for seven days if they live alone or 14 days if they live with others.

It comes as one of the UK's leading epidemiologists, Prof Neil Ferguson, said he developed symptoms of the virus after spending time in Downing Street on Monday.

He described Westminster and central London as a "hotbed" for Covid-19.

Health Minister Nadine Dorries became the first MP to test positive for coronavirus last week. A second member of the government, Culture Secretary Oliver Dowden, said he was self-isolating.

Another MP, Kate Osborne, has tested positive and several others have said they are self-isolating.

Image source, Getty Images

Artists and DJs have been sharing their sadness at the news Glastonbury has been cancelled due to the coronavirus outbreak.

Europe's biggest open-air music festival was due to celebrate its 50th anniversary this year. The event's more than 135,000 tickets sold out in 34 minutes last October.

UK rock band Skunk Anansie tweeted they were "disappointed", but "support the decision wholeheartedly".

DJ Annie Mac said it was a "heartbreaking decision" for the organisers to make.

Singer songwriter Billy Bragg said it was a "huge disappointment for ticket holders and artists for who it is a significant goal".

But Bragg but asked people to "stay healthy and look out for each other".

Image source, Getty Images

Hundreds of thousands of people trained in mental health first aid across England are being asked to step-up support during the coronavirus outbreak.

Mental Health First Aid England urged those with its qualification to encourage colleagues to stay connected even if they are no longer working in an office.

It is encouraging people to sign up to its My Whole Self campaign, external to share another side of themselves with the people they work alongside.

The organisation's chief executive Simon Blake said: “Whether online or offline, bringing your whole self to work is a mindset that is better for wellbeing and better for business.

“In the current climate, and as more organisations move to online working, human connections are more important than ever. Nurturing them virtually will be key to supporting the nation’s mental health and wellbeing as we come together to tackle the impact of coronavirus.”

You can read more from the BBC on how to look after your mental health here.