Captain Sir Tom Moore has been admitted to hospital with coronavirus, his daughter has said.

The 100-year-old, who raised almost £33m for the NHS, was taken to Bedford Hospital after requiring help with his breathing, Hannah Ingram-Moore said on Twitter.

She said he had been treated for pneumonia over the past few weeks and last week tested positive for Covid-19.

Mrs Ingram-Moore said her father was not in intensive care.

A spokeswoman for the family said Capt Sir Tom had not yet received the Covid-19 vaccine due to the medication he was on for pneumonia.

Prime Minister Boris Johnson tweeted: “You’ve inspired the whole nation, and I know we are all wishing you a full recovery.”

The Army veteran won the nation’s hearts by walking 100 laps of his garden in Marston Moretaine, Bedfordshire, before his 100th birthday during the first national lockdown.

He was knighted by the Queen in July.

In Mrs Ingram-Moore’s tweet, she said her father had been at home with the family until Sunday when he “needed additional help with breathing”.

She said the medical care he had received in the past few weeks had been “remarkable”.

“We know that the wonderful staff at Bedford Hospital will do all they can to make him comfortable and hopefully [he will] return home as soon as possible,” she said.

There has been an outpouring of well wishes for the centenarian on social media.

BBC Breakfast presenter Dan Walker posted: “Come on Captain Tom”, while actor and singer Michael Ball sent “love and prayers”.

Capt Sir Tom, who was given the honorary title of colonel on his 100th birthday, had initially set out to raise £1,000 for NHS charities by repeatedly walking an 82ft (25m) loop of his garden.

But he eventually raised £32,794,701 from more than 1.5m supporters.

The Australian city of Perth has begun a snap five-day lockdown after a security guard working at a quarantine hotel tested positive for coronavirus.

Western Australia – the state of which Perth is the capital – had not had a case of locally acquired coronavirus for 10 months.

The lockdown began at 18:00 (10:00 GMT) and runs until Friday night.

Schools, restaurants, bars, cinemas and gyms have been ordered to close.

Only essential travel is allowed and masks must be worn.

People in the city of two million – along with people living in the nearby Peel and South West regions – must stay at home, except for essential work, healthcare, food shopping or exercise, said Western Australia state Premier Mark McGowan.

A scheduled return of schools on Monday has also been delayed by a week.

“I know for many Western Australians this is going to come as a shock,” Mr McGowan said at a news conference. “We cannot forget how quickly this virus can spread, nor the devastation it can cause.

“Our model is to deal with it very, very quickly and harshly… so that we can bring it under control and not have community spread of the virus as you have seen in other countries around the world,” he added.

Mr McGowan said the guard may have the UK variant of the virus: “We are told the guard was working on the same floor as a positive UK variant case.” The guard and his family have been placed into quarantine at a state-run facility, he added.

Leaders of other states and territories have also been contacted and advised not to allow people to travel into the state.

Australia has recorded nearly 29,000 cases and 909 deaths since the pandemic began, for a populations of about 25 million – far fewer than many other countries.

In recent months in particular, the nation has taken swift and aggressive actions to contain outbreaks at their source, and it currently has a travel ban in place preventing residents from overseas travel.

Earlier this month, Queensland’s capital, Brisbane, completed a three-day lockdown over the detection of a single case.

Earlier this week, Australia also suspended a travel bubble with New Zealand after its first Covid case in months was confirmed to be a more contagious variant.

It has now reopened the travel bubble with New Zealand. Travellers to Australia will be screened before and after flights for the next 10 days, but will no longer be required to enter quarantine.

Until the Perth case, Australia had not had any locally acquired infection for the past 14 days. Its only infections had been in returned overseas travellers in hotel quarantine.

On Thursday, Australia was ranked eighth in a list of nations which had responded best to the virus. New Zealand and Vietnam topped the list from the Lowy Institute think tank.

Thousands of Russians have been taking part in unauthorised protests to demand the release of the jailed opposition leader Alexei Navalny.

More than 1,000 people have been detained so far, local media say.

In Moscow police have closed metro stations and are restricting movement in the city centre. About 140 people have been detained there.

Mr Navalny was jailed on his return to Russia after recovering from an attempt to kill him with a nerve agent.

He is accused of not complying with a suspended sentence.

The opposition figure had only just arrived from Berlin, where he spent months recovering from the near-fatal attack.

Russian authorities say he was supposed to report to police regularly because of a suspended sentence for embezzlement.

Mr Navalny has denounced his detention as “blatantly illegal”, saying the authorities knew he was being treated in Berlin for the Novichok poisoning, which happened in Russia last August.

Meanwhile Russian President Vladimir Putin has denied reports he is the owner of a vast palace on the Black Sea, as alleged by Mr Navalny in a video that has gone viral in Russia and has been watched more than 100m times.

In Moscow the BBC’s Sarah Rainsford says protesters played cat-and-mouse with police, getting up close to officers before retreating to safety. Police snatch squads pulled some protesters through the lines of riot shields. Footage showed a stream of people being escorted on to buses by riot police.

Mr Navalny’s wife Yulia Navalnaya is among those detained, Mr Navalny’s team says.

Police say the protests are illegal, while Russian authorities have warned that the demonstrations could spread the coronavirus.

A 40-year-old protester in Moscow told Reuters she had attended despite having a panic attack the night before over the possible repercussions she could face for taking part.

“I understand that I live in a totally lawless state. In a police state, with no independent courts. In a country ruled by corruption. I would like to live differently,” she said.

In St Petersburg, Mr Putin’s home city, a crowd gathered in a central square and chanted: “Down with the Tsar.”

Rallies in support of Mr Navalny have already taken place in eastern Russia. In the Siberian city of Novosibirsk, at least 2,000 people marched through the city chanting “Freedom” and “Putin is a thief”.

The European Union recognised it “made a mistake” in triggering an emergency provision in the Brexit deal to control Covid vaccine exports, the Cabinet Office minister has said.

Michael Gove said he was “confident” of the UK’s vaccine supply and said its programme would continue as planned.

He said the UK was “on track” to deliver 15 million jabs by 15 February.

It comes after the EU reversed a decision which could have seen checks at the Irish border amid a vaccine row.

Mr Gove said he had spoken with European Commission vice-president Maroš Šefčovič and both had agreed “we need a reset” and to put the people of Northern Ireland first.

He said Prime Minister Boris Johnson had spoken to European Commission President Ursula von der Leyen and it was made clear that “supply would not be interrupted so we can proceed with our plans”.

On Friday, the EU said it would trigger Article 16 of the Northern Ireland Protocol – which allows the EU and UK to choose to suspend any aspects they consider are causing “economic, societal or environmental difficulties” – before later reversing the decision following condemnation from London, Dublin and Belfast.

The Irish Republic’s foreign minister, Simon Coveney, said in a tweet the protocol was a “hard-won compromise” and was “not something to be tampered with lightly”.

The move came amid a deepening dispute over delays to the production and distribution of Covid vaccines across the EU.

One EU diplomat told BBC Europe editor Katya Adler they were not consulted on the move and would have said it was a “terrible idea”, while another described the EU’s vaccination programme as a “car crash in slow motion”.

After speaking with Mr Gove, Mr Šefčovič tweeted their shared priority was ensuring the protocol worked for the people of Northern Ireland, “protecting gains of the peace process and avoiding disruption to everyday lives”.

Mr Coveney said he had also spoken with the pair, as well as UK Northern Ireland Secretary Brandon Lewis. He said the protocol was there to “protect relationships, facilitate trade, avoid borders”.