Harry and Meghan will arrive in the UK today (Picture:WireImage)

Prince Harry has received ‘cast iron assurances’ his family will be protected by specialist police when he arrives in the UK for the Queen’s Platinum Jubilee.

The Duke of Sussex, his wife Meghan Markle and their children Archie and Lilibet are flying in from California today with a small security team, according to reports.

It is thought they will be looked after by the Metropolitan Police when they land, despite an ongoing row with the UK Home Office over Harry’s safety.

The Met’s Royalty and Specialist Protection unit is understood to have spent weeks liaising with Harry’s team to guarantee taxpayer-funded officers, The Mirror reports.

Harry, 37, has been embroiled in a legal row with the government over a Home Office decision to strip him of his UK security after his dramatic departure from royal life.

Harry, who now lives in the US, says he does not feel safe bringing his family to the UK under current security arrangements and has offered to pay for British police bodyguards himself.

Sources told The Mirror that he has always been ‘in favour’ of returning to the UK for his grandmother’s celebrations, despite the Met insisting its officers are not ‘guns for hire’.

Harry has previously said he does not feel safe bringing his family to the UK under current security arrangement (Picture: EPN/Newscom / Avalon)

In the US, the family are guarded by a rotating 24-hour team, understood to consist of former special forces personnel and highly trained armed professionals.

A source close to the Sussex camp said: ‘For Harry, this has always been about protecting his family.

‘He has been in constant contact with the relevant parties and made it very clear that he wouldn’t travel without receiving cast iron assurances over the safety of his family.

‘He is satisfied the right procedures are in place and they are all very much looking forward to this week’s celebrations and of course getting to spend time with Her Majesty.’

Harry and Meghan last visited the UK in April, when they had a private meeting with the Queen before jetting off to the Netherlands for the Invictus Games.

The pair are said to have promised Her Majesty they would bring the children to see her ‘in the near future’.

More: Queen’s Platinum Jubilee

The Queen, 96, has never met Lilibet, who turns one this month.

Harry and Meghan are expected to attend the Service of Thanksgiving with the Queen at St Paul’s Cathedral on Friday morning, as well as the BBC’s Party at the Palace the following evening.

But they won’t conduct their own programme of events during the four-day weekend to celebrate the monarch’s 70-year reign.

The source said the duke has spoken to his family ahead of his visit and any talk of him and Meghan ‘planning to cause a scene or detract from the Queen’s celebrations is nonsense’.

‘They are here to see family and enjoy what will undoubtedly be an incredible moment in history,’ they said.

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