A second man has been arrested in connection with fires at two properties and a car linked to Prime Minister Sir Keir Starmer.

The 26-year-old was arrested around 1.45pm at Luton Airport on suspicion of conspiracy to commit arson with intent to endanger life.

The arrest was made by counter terrorism officers. The man has been taken into police custody in London.

It comes after a Ukrainian man, 21, was charged with three counts of arson with intent to endanger life.

Roman Lavrynovych appeared at Westminster Magistrates’ Court on Friday and was remanded in custody.

Officers from the Metropolitan Police’s Counter Terrorism Command led the investigation because of the connections to the prime minister.

Emergency services were called to a fire in the early hours of Monday at a house in Kentish Town, north London, where Sir Keir lived with his family before the election.

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Damage was caused to the property’s entrance, but nobody was hurt.

A car was also set alight in the same street last Thursday.

There was another blaze at the front door of a house converted into flats in Islington, also linked to the prime minister, on Sunday.

One person was taken to safety via an internal staircase by crews wearing breathing apparatus.

Crystal Palace are celebrating a historic win in the FA Cup after a 1-0 victory against Manchester City at Wembley.

It’s the south London club’s first major trophy – and third time lucky after losing two previous finals they have played in. The win also means Palace have qualified for next season’s Europa League.

Eberechi Eze put his side 1-0 up with the game’s only goal in the 16th minute.

Man City were given a chance to equalise when they were awarded a penalty in the 33rd minute, but Palace goalkeeper Dean Henderson – who had earlier escaped a red card for a handball outside the box – saved Omar Marmoush’s spot kick.

It briefly seemed the south London team had gone 2-0 up after a 58th-minute strike from Daniel Munoz but the goal was quickly ruled offside.

They then held onto their 1-0 lead until the final whistle, which came after an agonising 10 minutes of injury time.

Oliver Glasner’s team were the underdogs despite Manchester City having had a difficult season in the Premier League.

Pep Guardiola’s side also lost to their neighbours and rivals Manchester United in last year’s cup final.

‘It’s all about spirit’

Palace goalscorer Eze said he had “no words” as he celebrated with his team mates.

“I can only thank God,” he told ITV. “This is special, this is what dreams are made of, for this club as well. Who would have thought we could do it?

“We’ve made history today. The tactics were good but it’s all about spirit. That’s energy, that’s everyone fighting together and doing what we had to do today.”

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A manhunt has been launched after five people were stabbed at an event in southeast London, police have said.

Officers were called to Nathan Way, Thamesmead, at 4.19am on Saturday, the Metropolitan Police said.

Five people were found with stab wounds and were taken to hospital where their injuries are still being assessed.

No arrests have been made.

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“Enquiries are ongoing and a cordon will remain in place throughout the day,” a Met Police statement said.

Police are appealing for anyone with information to come forward.