Singer Prince has died at the age of 57, his publicist said.
His body was discovered at his Paisley Park compound in Minnesota, where his recording studio is located early on Thursday.
Prince, whose real name is Prince Rogers Nelson, suffered a medical emergency earlier this month that forced his private jet to make an emergency landing in Illinois.
The Carver County Sheriff’s Office tweeted that an investigation was under way on Thursday morning.
They told the Minneapolis Star Tribune that the identity of the deceased was being withheld until next of kin had been notified.
They tweeted: “Deputies are on scene of a death investigation at Paisley Park in Chanhassen. More info to follow.”
He was widely regarded as one of the most inventive musicians of his era and many of his songs are seen as classics.
He became an international superstar in 1982 after his breakthrough album 1999 and was most famous for hits including Purple Rain, When Doves Cry and Kiss.
His music career spanned more than three decades and he won seven Grammy Awards, sold more than 100 million records and won an Oscar for Best Original Song Score for Purple Rain.
The singer was also seen as an eccentric with a tendency towards bizarre career moves, such as changing his name to an unpronounceable symbol in the 1990s.
He was in the process of writing an untitled autobiography which was due to be published in 2017.
He became even more famous with the release of the film Purple Rain in 1984, aseemingly autobiographical movie set in the club scene in his home town of Minneapolis.
The film was a huge success and the soundtrack album spent 24 weeks at the top of the charts and sold more than 13 million copies.
It was the first time in his career that Prince had recorded with, and credited, his backing band, which he named the Revolution.
