Kate Middleton diagnosed with cancer: Prince Harry, Meghan and more react

Prince Harry and Meghan, the Duke and Duchess of Sussex, have offered their support for Kate, the Princess of Wales, after she opened up about her cancer diagnosis.

"We wish health and healing for Kate and the family, and hope they are able to do so privately and in peace," Harry and Meghan said in a statement shared with ABC News.

he Sussexes, who stepped down as senior working royals in 2020, are among several family members of Kate who are rallying around Kate, including King Charles, who shared in a statement earlier on Friday that he is "so proud" of his daughter-in-law.

"His Majesty is 'so proud of Catherine for her courage in speaking as she did,'" a Buckingham Palace spokesman said Friday. "Following their time in hospital together, His Majesty has 'remained in the closest contact with his beloved daughter-in-law throughout the past weeks.'"

"Both Their Majesties 'will continue to offer their love and support to the whole family through this difficult time,'" the spokesman added.

In a video message shared on Friday, Kate, the wife of Prince William, said that after undergoing abdominal surgery in January, tests found "cancer had been present."

"My medical team therefore advised that I should undergo a course of preventative chemotherapy and I am now in the early stages of that treatment," she said. "This of course came as a huge shock, and William and I have been doing everything we can to process and manage this privately for the sake of our young family."

Kate's diagnosis was revealed less than two months after Buckingham Palace announced Charles' own cancer diagnosis.

Like Kate, Charles is also currently undergoing cancer treatment, though the palace has not said what type of cancer he has nor what type of treatments he is undergoing.