Four men have been arrested on suspicion of aggravated trespass in the grounds of the prime minister’s home, police have confirmed.

The incident took place at Rishi Sunak’s constituency address in Kirby Sigston, North Yorkshire, while he was attending events in London to mark the Japanese state visit.

A police statement said officers were “with the four men within one minute of them entering the grounds”.

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The arrests are connected to a protest by campaigners from Youth Demand. It describes itself as a group of young people who want “the Tories and the Labour Party commit to a two-way arms embargo on Israel, and to stop all new oil and gas licences”.

A spokesperson for the group said three of those arrested were taking part in the demonstration, while the fourth person was an independent photographer.

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A North Yorkshire Police spokesperson said: “They were detained at around 12.40pm before being escorted off the property and arrested on suspicion of aggravated trespass.

“The men, aged 52 from London, 43 from Bolton, 21 from Manchester, and 20 from Chichester, remain in police custody for questioning and enquiries are ongoing.”

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It comes after a separate incident last summer, when protesters scaled the roof of Mr Sunak’s home.

They held up banners which said “NO NEW OIL” and draped the building in fabric. It happened while the prime minister and his family were away on holiday in California.

Amy Rugg-Easey, 33, Alexandra Wilson, 32, Michael Grant, 64, and Mathieu Soete, 38, have pleaded not guilty to criminal damage, with a two-day trial set to take place in July.

Today has been the hottest day of the year so far in the UK, the Met Office has said.

A high of 30C (86F) was recorded in Chertsey, Surrey.

It is the highest temperature in the UK since 10 September last year, the weather agency said.

Winterbourne in Gloucestershire recorded a high of 28.7C, while it was 28C in Pershore, Worcestershire, and 27C in Usk, Monmouthshire.

It could get even hotter on Wednesday – some areas could experience highs of 31C (87.8F), the Met Office added.

A yellow alert from the UK Health Security Agency (UKHSA) is in place for most of England until 5pm on Thursday.

It has warned there could be “significant impacts” in the health and social care sector, and an increase in mortality in over-65s and people with health conditions.

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Conditions are expected to cool a little just before the weekend, but it will remain warm.

The Met Office said the hot spell could become a heatwave, which occurs when temperatures go above a set threshold – which varies between regions – for three days in a row.

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Music fans heading to Glastonbury are also set for a treat.

Festival gates open on Wednesday, when temperatures at Worthy Farm are forecast to reach 27C – and the weekend is shaping up to stay largely fine too.

However, there is a chance of a bit of rain on Saturday.

The hot spell marks a break from the rainy spring, which saw 32% more rain than average in England and Wales, making it the fifth wettest for England and the eighth wettest for Wales, said the Met Office.

England have topped their group at the Euros after a 0-0 draw with Slovenia, meaning they avoid some of the competition’s top teams in the next round.

The result in Cologne was enough to send Gareth Southgate’s men through as winners of Group C, on Tuesday evening.

The Three Lions have come under criticism over lacklustre performances in their group games, but managed to head into the knockouts in the strongest possible position.

Their performance even drew some boos from the crowd at half-time as they limped over the line against Slovenia.

Southgate’s men suffered the same problems as previous games, but with five points, the Three Lions made it through nonetheless and will play one of the best third-place finishers from Group D, E, or F in Gelsenkirchen on Sunday at 5pm.

Netherlands finished third in Group D and have impressed at times but suffered a surprise defeat to Ralf Rangnick’s Austria, losing 3-2, Tuesday evening.

In Group E, Romania, Belgium, Slovakia, and Ukraine are all tied on three points, and the Czech Republic are in third place in Group F, level on points with Georgia, but above them on goal difference.

By drawing Tuesday evening, England managed to book themselves a place on the easier side of the tournament, avoiding the likes of France, Portugal, Spain and Germany.

Trent Alexander Arnold was dropped from the starting XI in favour of Conor Gallagher in the only change to England’s team – only for the Chelsea man to be unceremoniously hooked at half-time.

The game was played in 24C heat as Germany enjoys something of a mini-heatwave, but instead of proving their critics wrong, England’s players initially seemed rattled by their words.

After a slow start to the game, a rare bright spark in the first half was when Bukayo Saka finished off a well-worked movement only for Phil Foden to have strayed offside in the build up.

In the 40th minute, Captain Harry Kane and Gallagher both also missed a golden opportunity to put England ahead.

Despite that, England were largely static and uninspired throughout the game.

There wasn’t much to celebrate for England and Slovenia celebrated qualifying as one of the best third-place finishers after the game.

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The game also raised questions of what England will do when they face are more sophisticated opponent.