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Firms that fail to refund people for holidays and weddings cancelled because of the coronavirus outbreak could face legal action by the consumer watchdog.

The Competition and Markets Authority says it has opened investigations into thousands of complaints and will take companies to court if they flout the law.

It says four out of five complaints made to its Covid-19 Taskforce are about cancellations and refunds.

Issues include holidaymakers being pressured to take vouchers instead of refunds for accommodation.

Read more.

This is the moment Captain Tom spotted a Royal Air Force flypast held in his honour earlier.

A World War Two Spitfire and Hurricane flew over the RAF veteran's home in Yorkshire to mark his 100th birthday.

Captain Tom, who was made an honorary colonel, has now raised more than £30m ($36m) for the National Health Service by completing lengths of his garden.

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Laura Bicker
BBC News, Seoul

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This feels like a milestone - and as a journalist who has followed the country’s aggressive and successful fight against this virus, it felt great just to type the words “zero cases”.

In February, South Korea had one of the worst outbreaks in Asia outside mainland China. I remember seeing exhausted doctors and nurses in the worst-hit city of Daegu telling me they would do everything they could to bring the infection rates under control, as ambulances queued around the hospital. The main buildings in the capital Seoul have been lit a brilliant blue in the evening just for them, and deservedly so.

Today thousands of South Koreans are enjoying the spring sunshine on what is a national holiday to celebrate Buddha’s birthday.

The parks are full of people laughing with friends and having picnics. The local airport is crowded with excited passengers flying to the southern island of Jeju to make the most of the long weekend - the busiest the airport has been in months.

Everyone we spoke to felt thankful that the country had stayed out of lockdown. They’ve been shocked by the impact Covid-19 has had on Europe and the US and told us they felt lucky to be able to enjoy time with friends and family. But there is also real caution here - and fear of a second wave.

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The care home in which the UK’s oldest known victim Hilda Churchill died at the age of 108 is appealing for help to build a memorial garden to celebrate its “angels”.

Mrs Churchill lived at Kenyon Lodge in Salford, Greater Manchester, for the final months of her life.

The former seamstress survived the Spanish Flu pandemic of 1918 which killed 50 million people, including her sister, as well as two world wars and the 1929 Great Depression.

She died on 28 March, just eight days before her 109th birthday and a day after testing positive for Covid-19.

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More on reports that the global demand for energy is set to plummet by a record amount this year, according to a forecast from the International Energy Agency (IEA).

The group has warned that storage space for excess crude oil is likely to run out in the coming weeks.

"We may well see around mid-June the global storage capacity [will] be full," executive director Fatih Birol told Reuters news agency. He said the problem was worst in North America.

Oil firms have resorted to renting tankers to store the surplus supply and that forced the price of US oil into negative territory for the first time in history earlier this month.

But prices have begun to rebound since then.

BBC staff have all just received an email from legendary rocker and Foo Fighters frontman Dave Grohl, in which he says what an "incredible honour" it was to see his song Times Like These covered by a host of stars for BBC Radio 1 Live Lounge.

"When my manager first called and explained the project to me, I literally had to fight back tears - that's how flattered I was that the BBC would consider one of my songs for such an important cause," said Grohl.

The cover features some of the biggest stars and best voices of this generation, including Dua Lipa, Biffy Clyro, Sean Paul, Sigrid, Bastille, YUNGBLUD and Rita Ora. All singing in isolation.

The single has been released to raise money for BBC Children in Need and Comic Relief.

"I look forward to the day that we’ll all be back in a muddy field again, singing our hearts out together," said Grohl, who also features in the video. "It’s times like these we learn to live again…"

The need to maintain social distancing after lockdown will "pose serious challenges" for London's busy transport network, the city's mayor has warned.

Sadiq Khan was responding to a report - seen by BBC News - by emergency planners which suggests the city's Tube may be "rapidly overwhelmed" if social distancing is maintained.

A spokesman for the mayor's office said "life simply won’t be returning to what it was before" and called on the UK government to hold "an open and honest conversation with the public about how we’ll all have to play our part".

UK supermarket chain Sainsbury's has warned that socially distanced queues are likely to remain "for the foreseeable future".

Its boss, Mike Coupe, told the BBC about the "crazy" sales during the pandemic and how shoppers' habits were changing.

Half of the world's workers could lose their jobs because of this pandemic, the International Labour Organisation has said.

That's 1.6 billion people but who are they?

The BBC's population reporter, Stephanie Hegarty, heard from people in four countries who used to get by on a daily wage but whose lives have been torn apart by the lockdown.

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Brazil registered a record 6,276 new coronavirus cases on Wednesday. It already has the largest number of infections in all of Latin America with 79,685 total confirmed cases and more than 5,500 deaths.

President Jair Bolsonaro has downplayed the threat posed by the virus. Asked by reporters for comment after the death toll passed the 5,000 mark on Tuesday, he said: "So what? I'm sorry. What do you want me to do?"

One of the worst affected cities has been Manaus in the Amazon. The city's mayor has said that they are preparing to hold more than 4,000 funerals in May - four times the usual number.

The spread of coronavirus around the world has meant a lot of changes, especially when it comes to our jobs and money.

Thousands of you in the UK have been asking us questions about your financial situation during this time, and from 12:00 BST (11:00 GMT) on Friday, our experts will be ready to answer some of those questions online.

Whatever your question send it to BBC News by using the form in this article and we'll do our best to answer a selection of them.

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The University of Oxford’s potential Covid-19 vaccine will be manufactured and distributed by pharmaceutical giant AstraZeneca on a not-for-profit basis.

The partnership will allow for rapid vaccination around the world if it proves to be effective.

Human trials of the vaccine developed by the University started on 23 April, with hundreds of people volunteering to take part in the study which received £20m ($25m) of UK government funding.

Regius Professor of Medicine at Oxford University Professor Sir John Bell told BBC Radio 4's Today programme the partnership would be "major force in the struggle against pandemics" for the foreseeable future.

Sir John also said he hoped some results from a human trial of the vaccine would be available by the middle of June.

Health Secretary Matt Hancock said it was "hugely welcome news" that an agreement to scale up the vaccine had been reached.

Read more on why a coronavirus vaccine is so important

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From the effect on wildlife to pollution levels and air quality, a fair amount has been heard about the environmental impact this pandemic is having.

And now it appears that the global demand for energy is set to plummet by record amounts due to the lockdowns being enforced around the world.

The International Energy Agency (IEA) is forecasting a 6% drop in energy demand for the year, which would be the steepest fall in more than 70 years and a record amount in absolute terms.

The IEA said this would lead to a drop in carbon dioxide emissions of 8%, six times larger than the biggest fall in 2009 which followed the financial crash.

“Given the number of deaths and the economic trauma around the world, this historic decline in global emissions is absolutely nothing to cheer,” the organisation’s executive director Fatih Birol told Reuters news agency.

UK Prime Minister Boris Johnson has praised the "heroic efforts" of Captain Tom Moore, the war veteran who raised more than £29m ($36m) for the UK's National Health Service (NHS) by walking laps of his garden.

"On behalf of the whole country, thank you and have a very special 100th birthday," he said.

Capt Tom spoke to the BBC earlier today about the response to his fundraising efforts and the huge amount of birthday wishes he has recieved.

"I'm absolutely delighted with all the people like you who have come to wish me a very happy birthday," he said. "It really is awesome the amount of people who have made those remarks."

"When you see all those [birthday] cards from children - if you're a weeping person - it would make you weep," he said. "But I can't promise to read them all!"

Volunteers have opened an estimated 140,000 birthday cards sent to Capt Tom from around the country.

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With live sport fixtures on hold due to the pandemic, various tennis stars are planning to compete in a live-streamed tournament of a tennis video game.

Serena Willams, Naomi Osaka and Maria Sharapova are among the athletes who will go head to head on Mario Tennis Aces.

They will partner with celebrities and play as characters from the game on Nintendo Switch. Facebook Gaming will stream the event on 3 May.

E-sports have surged in popularity as Covid-19 forces the cancellation of live events, prompting players and leagues to turn to online gaming to keep fans engaged.

We've got a list of the celeb-athlete pairings in our full story.

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If you're just joining us, we hope you're keeping safe and well. Here's a summary of the main news headlines from around the world:

• South Korea - which at one point had more than 900 new cases a day - has reported no new local transmissions
• US President Donald Trump accuses China of reacting slowly to the virus to harm his re-election chances
• A UK minister says the government may not reach its target of 100,000 tests a day
• Trials of a drug, remdesivir, suggest it can help people recover from Covid-19 more quickly
• Tesla boss Elon Musk says lockdowns are "fascist" and accuses governments of "forcibly imprisoning people in their homes against all their constitutional rights"
• And British Second World War veteran Captain Tom Moore - who raised around £30m ($37m) for health charities - turns 100

Image source, Reuters

Many British businesses have begun planning in case restrictions are eased, with pub chain Wetherspoons preparing to open its doors "in or around" June.

Pubs and many other businesses, external have been ordered to close since 23 March.

Responding to the chain's announcement, cabinet minister Robert Buckland urged companies to "work together" with the government.

He said many firms were "very anxious and straining at the leash to get back to normal" but stressed that "mixed messages help nobody".

The cabinet will meet shortly to discuss how the lockdown measures may eventually be lifted, before Prime Minister Boris Johnson is expected to reveal some details at the Downing Street briefing later.

Asked what people can expect, Buckland said: "I don't think you're going to hear specific detail. I think that would be premature, frankly."

The UK may not reach its target of conducting 100,000 tests a day by the end of April, a cabinet minister has suggested.

Health Secretary Matt Hancock set the target earlier this month but latest figures show only 52,429 tests were carried out on Tuesday.

Justice Secretary Robert Buckland was asked about the likelihood of reaching the target by the BBC a little earlier.

"Even if it isn't met, we are well on our way to ramping this up," he said. "One hundred thousand is an important milestone, yes, but frankly we need more."

He added: "Yes, 52,000 isn't 100,000, I know that... but we are straining every sinew to get there."

NHS Providers, which represents hospitals and National Health Service trusts in England, has dismissed the 100,000 target as a "red herring" which risks preventing the development of a "proper, next stage testing strategy".

Buckland said drive-in test centres, mobile units and home testing would "get us to the position we need to be in" but there was "much more work to be done".

Prime Minister Boris Johnson has previously suggested a target of 250,000 tests a day.

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If you haven't had a chance to keep your eye on what is happening in the world of sport, here are some of the latest headlines:

• Former England & Leeds defender Trevor Cherry has died, aged 72
• Tour de France organisers say the race could still go ahead despite an extension to rules on mass gatherings in France
• Coronavirus could affect international football for "two or three years"
• Premier League clubs meet on Friday to discuss a potential restart on 8 June

Theo Leggett
Business correspondent, BBC News

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Aviation is the most global of global industries, employing millions around the world. But with vast parts of its networks down, the number of daily flights has dropped by 80% since the start of the year. In some regions, nearly all passenger traffic has been suspended.

The industry is in survival mode, with airlines, airports and ground-handling firms all desperate to conserve their cash reserves, while their normal revenue streams have dried up.

Widespread job losses are expected, with British Airways' parent company IAG announcing on Tuesday that it is set to cut up to 12,000 positions from the airline's 42,000-strong workforce. IAG said it did not expect BA to see passenger demand return to 2019 levels for "several years".

Even so, attention is now gradually turning to the future, and how airlines around the world can hope to slowly return to something approaching normality.

Read more here.

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Captain Tom Moore, the war veteran who raised more than £29m ($36m) for the UK's National Health Service by walking laps of his garden, turns 100 today.

As well as receiving a personalised card from the Queen, Capt Tom will be made an honorary England cricketer by former captain Michael Vaughan.

He's also been made an honorary colonel.

You can watch our live coverage of his celebrations, including a flypast by the Royal Air Force, via the video stream at the top of this page. He's being interviewed on BBC Breakfast right now.

You can also follow updates on BBC England's live page.