Nearly 500 people have been arrested over protests supporting the proscribed group Palestine Action, as demonstrators defied calls to reconsider in the wake of the Manchester synagogue terror attack.

Two days after the attack in Crumpsall, crowds of people gathered in central London on Saturday to call on the government to reverse the ban on the proscribed group.

Organisers of the protest, Defend Our Juries, said 1,000 people attended the event to “oppose genocide and the Palestine Action ban”.

The Metropolitan Police said 492 people had been arrested, with the youngest being 18 and the eldest 89. The force said 297 remain in custody and the rest have been bailed.

Before the demonstration even began, six people were arrested for unfurling banners which read “I oppose genocide” and “I support Palestine Action” on Westminster Bridge.

The bulk of the arrests were made in Trafalgar Square, where protesters held placards showing their support for Palestine Action, which was added to the UK’s list of proscribed terrorist groups in July.

The Met said a different group of protesters also gathered in Whitehall before trying to make their way to Trafalgar Square.

Many of those arrested throughout the day were older individuals. Pictures showed people with walking sticks or in wheelchairs being supported by police, while others were physically carried to a processing pen after failing to cooperate with officers.

One protester, 62-year-old Mike Higgins, who is blind and uses a wheelchair, told the PA news agency: “We are going to win this battle, by the way, there’s no doubt about that. The problem for me is that I want to win it now to try and bring an end to the suffering in Palestine.”

The Metropolitan Police had urged the Defend Our Juries group to postpone the event in light of the synagogue attack.

Chief of the Metropolitan Police, Sir Mark Rowley, said he was worried resources would be stretched and the ability of the force to protect communities would be compromised as a result of the protest.

In a statement on X on Saturday morning, Sir Keir Starmer also said anyone thinking of protesting should “recognise and respect the grief of British Jews”, while Jewish figures called the action “phenomenally tone deaf”.

In a letter to Ade Adelekan, the deputy assistant commissioner of the Metropolitan Police, Defend Our Juries said the protest would continue as planned as “the protection of our democracy and the prevention of countless deaths are critical issues”.

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The controversial decision drew criticism from policing minister Sarah Jones, who said many of those attending the event “want to be arrested, that is their aim”.

She said: “We believe in people’s rights to protest. This protest here in London is a different order of event because people are supporting a proscribed organisation and the police have to step in, in that case.”

A similar event held by the group, Greater Manchester Friends of Palestine, took place earlier on Saturday in Manchester. Instead of marching in support of Palestine Action, the event was to “honour the names of Palestinian children brutally killed by Israel in Gaza”.

A crowd of around 100 pro-Palestinian supporters gathered outside the city’s Cathedral to listen to speakers before moving en masse to St Peter’s Square.

People were heard chanting “Free Palestine!” while a small group of counter-protesters marched in front shouting “release the hostages”.

Greater Manchester Police (GMP) did not say if any arrests were made.

Away from the protests, GMP said four of the six people arrested in connection to the synagogue terror attack will remain in custody for up to another five days.

The force said the custody extension applies to two men, aged 30 and 32, and two women, aged 61 and 46.

An 18-year-old woman and a 43-year-old man have been released and will face no further action.

GMP said all six people had been arrested on suspicion of commission, preparation and instigation of acts of terrorism.

A close adviser to Prince William has told Sky News William “does care deeply about tradition” but his Earthshot Prize shows he’s not afraid to modernise to make sure his work “makes sense” for the generation he will serve.

Marking a month to go until the fifth Earthshot Prize awards takes place in Rio de Janeiro in Brazil, Jason Knauf, the new chief executive, says it shows “the sort of leader that Prince William wants to be, both now and in the future” but also the huge impact his influence can have on issues like the climate crisis.

Mr Knauf has become a close confidante of the Prince, having worked with him for ten years, and being there right at the beginning of the Earthshot journey, “when this thing was percolating, and he really pushed us to make it something special”.

But after discussions this week about the “change” William wants to make when he’s monarch, Mr Knauf told us the Prince doesn’t want to just shake things up for the sake of it.

“He does care deeply about tradition, about his family’s legacy of service, and I think Earthshot is a really good example of how you’re going to see that maintained in the future, but done in a way that makes sense for the time”, he said, adding: “That’s what his grandmother did.

“That’s what his father’s been doing. Updating the tradition for the generation that they serve”.

Explaining how in the early days they looked closely at other examples of past royal prizes or initiatives, such as the Duke of Edinburgh Award, for inspiration, Mr Knauf said: “You know, we didn’t just create this thing in a vacuum. It was about what kind of difference could his leadership make?

“And one of the things about the royal family for generations, has been recognising the work of others.

“You know, whether that’s through the honours system, recognising people in arts and community service or whatever it might be, all this is doing is taking something that’s really traditional and putting a modern twist on it”.

Last week, a TV programme was released in which Prince William admitted, during an interview with Hollywood star Eugene Levy, that “change is on my agenda” when he becomes King.

This weekend, the finalists for the fifth Earthshot awards are announced, with four weeks to go until the ceremony takes place in Rio.

The prize recognises innovators coming up with solutions to the world’s most pressing environmental problems.

Among this year’s finalists in the running for the five £1m prizes are Matter, a British company whose simple washing machine filters remove the greatest cause of microplastics in our ocean; the world’s first fully ‘upcycled skyscraper’ in Australia, a Chinese company working on mobile phone waste, and the country of Barbados for its environmental focus.

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For the first time, the awards will take place in the same country, in the same week as the UN climate change conference COP30.

Addressing whether the positive message of Earthshot will be overshadowed by the inevitable split opinions on tackling the climate crisis that will come out of the conference in Belem, Mr Knauf said: “The news around political disagreement and all of that stuff will be out there, but that’s one of the reasons we created the prize, directly to challenge that pessimism and negativity, to say we need to get on with this work.

“Showing world leaders that big things are happening in their regions and in their countries and in their backyards should remind them that, actually, this isn’t something that’s theoretical.

“The actual solutions that we need really, really do exist”.

Prince William will travel to Brazil on 3 November for engagements in Rio, highlighting environmental issues, as well as attending the awards on 5 November at the iconic Museum of Tomorrow.

In a video posted on his social media, the Prince explains how he continues to do this for his children, saying: “The Earthshot Prize was founded because this decade matters.

“2030 is a threshold by which future generations will judge us; it is the point at which our actions, or lack of them, will have shaped forever the trajectory of our planet.”

The Green Party now has more members than the Liberal Democrats, despite having 68 fewer MPs in parliament.

Rachel Millward, the party’s deputy leader, announced the achievement to members on the second day of the party’s annual conference in Bournemouth this morning.

It’s believed to be only the second time this has happened, with the last time being more than a decade ago – in January 2015.

The Greens have revealed they now have more than 83,500 members, to the Lib Dems 83,174.

This is despite Sir Ed Davey’s party having 72 MPs in parliament, while the Greens have just four representatives in the Commons.

Around 20,000 new members have joined the Green Party in recent months, leading to a surge in membership of about 20%.

Polanski: ‘I have undoubtedly accelerated the party’s rise’

It follows the election of new leader Zack Polanski at the beginning of September. Mr Polanski, who is not an MP, ran on a platform of bringing about a mass-movement within the party through the form of “eco-populism”.

Mr Polanski has stated his public ambition is for the party to win more than 30 MPs at the next general election in four years time, and to win himself a seat in parliament.

Announcing the rise in membership, Ms Millward said: “We are now officially the fastest growing political movement in Britain today!

“As of right now, I can confirm we are bigger than the Liberal Democrats.”

This was met with a standing ovation from members, one of several that the deputy leader received during her speech.

Speaking to Sky News following his deputy’s speech to the conference, Mr Polanski said: “It’s phenomenally exciting. It marks a real moment. It’s really striking to me that since I launched my leadership campaign back in May, membership went up 33% and is still going up.”

Challenged if he believes the sudden rise in membership is entirely down to his own leadership abilities, Mr Polanski responded: “This is a team effort.

“I think for a long time the party’s had a very clear direction. I think, undoubtedly, I’ve accelerated that in terms of the bold politics message, but I know the entire party is on board with that.”

The Green Party leader used his keynote speech to members on Friday to set out plans for a wealth tax on the assets of the richest 1% “to reduce inequality” and end “rip off Britain”. He also called the conflict in Gaza a genocide – a long-standing Green Party policy – and insisted “we will not be silent”.

On Saturday, deputy leaders Ms Millward and Mothin Ali addressed members in the morning and, at lunchtime, hundreds of supporters gathered on the beach in Bournemouth in support of Palestinians in Gaza.

Holding up a large red banner that stretched far down the beach, Mr Polanski asked the government where its “red line” was for Israel. Members led several chants from the beach, including the controversial phrase: “From the River to the sea, Palestine will be free.”

This evening, Mr Polanski will record a live episode of his podcast, Bold Politics, with left-wing commentator, Owen Jones.

Lib Dems: ‘Sir Ed Davey is the most popular and the most trusted’

The Liberal Democrats’ website boasts a membership of “more than 90,000 people”, but Sky News understands that this figure is out of date and incorrect.

The 83,174 number comes from the most recently published set of the party’s accounts, which cover up to the end of last year. It is thought membership of the party may have dropped since.

Responding to being overtaken by the Greens, a spokesperson for the party said: “Across the country it’s the Liberal Democrats who are on the up, after making record gains at the local elections in May, winning more seats than Labour and the Conservatives for the first time ever.

“Ed Davey is the most popular party leader, and the most trusted on NHS and care, because we’re focused on the issues that really matter.”

The Lib Dems held their party conference earlier this year, where Sir Ed used speeches to attack Reform UK, US President Donald Trump and tech titan Elon Musk.