Former US President Donald Trump has sent heartfelt messages to King Charles after his shock cancer diagnosis. 

King Charles, whose coronation was in May, was receiving treatment for an enlarged prostate when physicians identified an issue of concern that turned out to be cancer, according to Buckingham Palace.

Trump has now sent prayers for a speedy recovery to the King, 75.

‘KING CHARLES HAS CANCER. HE IS A WONDERFUL MAN, WHO I GOT TO KNOW WELL DURING MY PRESIDENCY, AND WE ALL PRAY THAT HE HAS A FAST AND FULL RECOVERY!’ Trump wrote on his Truth Social platform.

Trump’s well wishes came on a day US President Joe Biden said he plans to speak to King Charles III after Buckingham Palace revealed he has been diagnosed with cancer.

In his first comments on the 75-year-old British monarch’s health, Biden told DailyMail.com that ‘God willing’ he will speak to him soon.

‘I’m about to call him,’ Biden said during the outpouring of support from around the world: ‘I’m concerned about him. Just heard about his diagnosis.’