King and Queen jet back to London for public-facing duties: Camilla hosts all-female sports team at celebratory Clarence House reception as Charles prepares to visit cancer treatment centre tomorrow

King Charles has arrived in London ahead of his return to public-facing duties, as his medical team 'remain positive' about his 'continued recovery'.

The King, 75, was spotted boarding a plane with Queen Camilla, 76, at Aberdeen Airport this morning.

He returns to London ahead of a visit to a cancer treatment centre on Tuesday where he will be accompanied by Queen Camilla.

A Buckingham Palace spokesperson said: 'This visit will be the first in a number of external engagements His Majesty will undertake in the weeks ahead.'

After landing in London, Queen Camilla was whisked off to Clarence House where she hosted a reception for the Maiden yachting crew - the first all-female crew to win an around-the-world yacht race.

The King, 75, has been receiving treatment for an unspecified type of cancer since early February.

King Charles was diagnosed after the cancer was discovered during a procedure at the London Clinic in January for a benign prostate enlargement.

The Palace said: 'His Majesty's medical team are very encouraged by the progress made so far and remain positive about the King's continued recovery.

'His Majesty's treatment programme will continue, but doctors are sufficiently pleased with the progress made so far that the King is now able to resume a number of public-facing duties.'

In addition to visiting the cancer treatment centre, the King will host The Emperor and Empress of Japan for a state visit in June.

The Daily Mail has already revealed that Charles will have a busy summer schedule with plans under way for him to attend his own birthday celebrations, Trooping the Colour, as well as Royal Ascot.

A spokesperson said: 'Planning continues for ways in which Their Majesties may attend such summer and autumn engagements, though nothing can be confirmed or guaranteed at this stage.

'All future plans remain subject to doctors' advice nearer the time, with appropriate adaptations made where necessary to minimise any risks to His Majesty's continued recovery.

'The pacing of the King’s programme will be carefully calibrated as his recovery continues, in close consultation with his medical team.'

The Palace also released a photograph of King Charles and Queen Camilla strolling through the gardens of Buckingham Palace on April 10, the day after their 19th wedding anniversary.

In a statement Buckingham Palace said yesterday: 'As the first anniversary of The Coronation approaches, Their Majesties remain deeply grateful for the many kindnesses and good wishes they have received from around the world throughout the joys and challenges of the past year.'

The anniversary of the coronation will take place on May 6.

Prime Minister Rishi Sunak said on X that the King's return to public duties was 'brilliant news to end the week!'

Last month the Princess of Wales revealed she had also been diagnosed with cancer after undergoing 'planned abdominal surgery' in January.