Singer Michael Buble has announced that his 3-year-old son, Noah, has cancer.

People reported that Buble, 41, and his wife, Luisana Lopilato, 29, made a statement on Buble's Facebook page confirming the news.

>> Read more trending stories

"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," the statement said.

"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."

ET Canada reported that the Canadian singer and his wife took their son to the U.S. for treatment when they initially thought he had mumps.

Buble and Lopilato are also parents to 9-month-old Elias.

Fans and supporters quickly responded to the news with positive comments on Facebook: