King Charles‘ funeral plans are already solidified. The Monarch’s health has been under heavy speculation after he was diagnosed with an undisclosed form of cancer.

Sources have told RadarOnline that Buckingham Officials are getting ready for the King’s death. The plans are known as Operation Menai Bridge, but in recent months the codename has been upgraded to Operation London Bridge, according to The Independent.

Simon Morgan, who worked on the security personnel for Queen Elizabeth, told RadarOnline that plans for his funeral started when he took his duties as King. “Even the king said in his acceptance that he will take this role for as long as life allows him to… it’s got to be in the back of your mind, and from the police, we’ve got to start planning again for the future.”

A senior royal aide disclosed, “These are rehearsals no one wants to do, but everyone has to be ready. Every detail is planned – from who calls whom to how flags are lowered.”

Related: Prince Harry Fears He May Not Talk to King Charles Again Before He Dies: ‘I Don’t Know How Much Longer My Father Has’

Royal insider Camilla Tominey reported that King Charles’ cancer is incurable. “The talk now is that he may die ‘with’ cancer, but not ‘of’ cancer following a rigorous treatment program,” she revealed in The Telegraph. She also confirmed that King Charles’ 80th anniversary plans in 2028 are “tentative” due to his ailing health.

”Charles is indeed a sick man, and he does have cancer,” an insider told NewsNationNow. “He also refused chemotherapy and decided on a less invasive treatment.”

It’s the complete opposite of what a royal aide said King Charles‘s health. He is dealing “incredibly well” with cancer, the anonymous insider told The Telegraph. “The thing you learn about this illness is that you just manage it and that’s what he does. Medical science has made incredible advances and I genuinely see no difference in him. As long as you just do what the doctors say, just live your life as normal as possible… that’s exactly what he is doing.”

Royal author Tom Quinn also previously told Harper’s Bazaar that succession planning had come soon after Charles’ own coronation ceremony. “The people I’ve spoken to have said that the succession planning, as they call it, began even before Charles’ diagnosis,” he said. “I mean, he’s the oldest Prince of Wales to become king in history, so succession planning had begun before Charles came to the throne simply because of the age issue.”