Rupert Young’s cause of death has not yet been confirmed.
“I can confirm that Will’s brother has sadly passed away,” a spokesperson for Young said in a statement.
“We would like to ask for the confidentiality of Will and his family during this very difficult and sad time. ”
Rupert is said to have suffered from mental health problems for several years.
Will, who is 10 minutes older than his brother, rose to fame by winning the Pop Idol talent show in 2002.
The singer had previously spoken of his brother’s struggles, admitting that at one point the family had turned their backs on him in a desperate effort to help him get better.
Rupert had been open to the difficulty of watching his brother become famous in the past.
In an interview in 2008, he recounted how he watched his brother on a TV talk show the day after spending the night in a parking lot harming himself.
“It seemed strange to me that two genetically identical people could behave so differently,” he said.
“I realized that something had gone very wrong. But I didn’t know what or why, and neither did anyone else. ”
Anyone feeling emotionally distressed or suicidal can call the Samaritans for help on 116 123 or email [email protected] UK. In the United States, call your local Samaritans branch or 1 (800) 273-TALK