King Charles has left Sandringham to return to London for what is widely expected to be further treatment following his cancer diagnosis.

Charles and Queen Camilla flew to Buckingham Palace via helicopter from their private home on the Norfolk estate. 

Last week it was announced that the King has a “form of cancer” and at the weekend he issued a statement praising “all those organisations which support cancer patients”.

Eastern Daily Press: The royal helicopter carrying King Charles and Queen Camilla arrives at Buckingham Palace after they spent a week at SandringhamThe royal helicopter carrying King Charles and Queen Camilla arrives at Buckingham Palace after they spent a week at Sandringham (Image: PA Media)

He attended St Mary Magdalene Church in Sandringham with the Queen on Sunday in his first public outing since the announcement of his cancer diagnosis.

While the King has postponed all public-facing duties, he continues to work on behind-the-scenes tasks such as his red boxes of state papers. 

The Queen has continued to carry out her royal diary of engagements and was quoted last week saying her husband was doing “extremely well under the circumstances”.

READ MORE: King Charles returns to Sandringham after hospital treatment

She said the King, who underwent his first bout of cancer treatment last week, had been “very touched” by all the messages of support he has received from the public.

Charles’s diagnosis followed three nights in a private London hospital where he was treated for an enlarged prostate.

The Prince of Wales may step in to represent his father at events and it has been reported William and his family are spending half-term at their Norfolk home Anmer Hall, which is on the Sandringham estate.