"René Angélil, 73, passed away this morning at his home in Las Vegas after a long and courageous battle against cancer," Dion's publicist confirmed to CNN.
"The family requests that their privacy be respected at the moment; more details will be provided at a later time," according to a post on Dion's website.
Angélil, Dion's longtime collaborator, stepped aside as his wife's manager in June 2014 because of his battle with cancer. That August, Dion put her career on a temporary hold to help him fight the disease.
The Clark County Coroner's Office said Angelil died from throat cancer.
"We have determined Mr. Angelil's death was due to natural causes. No further investigation into his death is expected," the coroner said in a statement.
"We have determined Mr. Angelil's death was due to natural causes. No further investigation into his death is expected," the coroner said in a statement.
