Michael Buble and his family have been "broken in half" by his son's cancer diagnosis.
Michael Buble
The 41-year-old singer and his wife Luisana Lopilato announced that their eldest son, Noah, three is receiving treatment in the US for caner and his sister-in-law Daniela Lopilato has opened up about how the family are coping.
On a morning TV show, Argentinian journalist Tomas Dente read out a text message from Daniela which said: "To tell you the truth I'm devastated. This is very recent.
"The only thing I ask is that you don't speculate because not everyone has children and can understand what this means.
"Michael and my sister will publish more statements and I can't say anymore.
"But it's not leukaemia or the central nervous system as people are saying. It's all I can say."
Her message came after Michael announced the sad news on his Facebook page.
He said: "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."
And friends of the couple - who also have an eight-month-old son Elias together - say Noah is a fighter.
An insider told Us Weekly: "They are really sad but hopeful. They immediately got him very good care and they are hoping and praying for the best.
"They are getting him the best doctors around. It's really heartbreaking. This was a real shock, but they are doing everything they can.
"They're staying positive and Noah is a fighter."
Tagged in Michael Buble Luisana Lopilato