- By Sean Coughlan, Royal Correspondent and Sean Seddon
- BBC News
The Duke of Sussex has arrived in England to visit his father following the monarch's cancer diagnosis.
Prince Harry arrived in London on Tuesday via an overnight flight from Los Angeles.
The 75-year-old monarch told her two sons of her diagnosis before Buckingham Palace announced she would be stepping back from public duties for treatment.
The Duchess of Sussex is expected to stay in the US, where the couple live with their two children.
The speed with which Prince Harry rushed from California to visit his father in England appears remarkable.
There were already signs of the family growing closer, such as when the 39-year-old duke spoke to the king on the phone for the monarch's birthday last fall.
But there are no signs of Prince Harry or Meghan going to Christmas or any other family gatherings. Until now they have been living in an ocean apart from other members of the royal family.
The tensions within the royal family – reported in Prince Harry's memoir Spare – were fueled not so much between him and the monarch but by his brother the Prince of Wales and the over-indulgence of the tabloid press.
To that end, Prince Harry's recent trips to the UK have been more about law courts than royal courts.
But even before this latest health news, Prince Harry and Meghan – who live in the exclusive Californian community of Montecito – seem to have more projects and trips planned.
They were in Jamaica for a movie premiere and were said to be in Canada later this month for an event related to their Invictus Games. That journey is expected to continue.
King Charles' cancer diagnosis
Prince Harry's brother, Prince William, has yet to publicly comment on the monarch's diagnosis.
Prince William is expected to take on some of his father's public engagements during the monarch's absence, although the palace has insisted the monarch will continue to carry out formal constitutional functions.
The Prince was due to return to his own public duties this week after stepping back following the Princess of Wales' stomach surgery last month.
Tuesday morning saw the King's niece Princess Beatrice arrive at Clarence House, the London home where the King is staying, following her first round of treatment.
Prime Minister Rishi Sunak earlier told BBC Radio 5 Live that King's cancer was “caught early” and that he was still in “regular contact” with the monarch.
He said their weekly visits would continue during the King's treatment.
The palace has revealed some details of the monarch's cancer diagnosis, confirming it was discovered during treatment for a recently enlarged prostate.
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