Michael Buble's 3-year-old son, Noah, diagnosed with cancer

Singer Michael Buble's three-year-old son Noah has been diagnosed with cancer.

Michael Buble with his sons Noah, Elias and wife Luisa. Picture: Instagram

The Canadian musician wrote on his Facebook page that he and his wife Luisana Lopilato are “devastated” at the diagnosis.

The message read: “We are devastated about the recent cancer diagnosis of our oldest son Noah, who is currently undergoing treatment in the US.

“We have always been very vocal about the importance of family and the love we have for our children. Luisana and I have put our careers on hold in order to devote all our time and attention to helping Noah get well. At this difficult time, we ask only for your prayers and respect for our privacy.

“We have a long journey in front of us and hope that with the support of family, friends and fans around the world, we will win this battle, God willing.”

According to reports, the boy was diagnosed after he and his mother travelled to the US due to health concerns.

The type of cancer he has has not been revealed.

Buble and Argentine model and actress Lopilato are also parents to nine-month-old son Elias.

During a recent appearance on ITV’s Loose Women, 41-year-old Buble praised his children for giving him “perspective” and said that he was unaware how much he would enjoy being a father.

He said: “The only regret that I have in my life is that I took this long to have kids, because I had no idea the perspective it would give me.

“I had no idea how much I would love being a dad. That’s it, that’s all I care about... I love them too much probably, if there was such a thing.

“It’s made everything else so insignificant, moments that I was afraid of and moments that would overwhelm me have now become a joy because I’ve realised how not serious they are compared to what is really important, which is Noah and Eli and that’s it.”

Buble and Lopilato married in 2011, before welcoming Noah in August 2013.