Swedish DJ and producer Avicii has died at the age of 28, his rep confirmed to multiple outlets on Friday, April 20.

“It is with profound sorrow that we announce the loss of Tim Bergling, also known as Avicii,” the representative said in a statement. “He was found dead in Muscat, Oman, this Friday afternoon local time, April 20th. The family is devastated and we ask everyone to please respect their need for privacy in this difficult time. No further statements will be given.”

Bergling officially retired from music in 2016 after suffering from a number of medical issues, although he did release new music in 2017. Friends and fellow musicians have been shocked by the news of his death and are sharing their grief on social media.

“Devastating news about Avicii, a beautiful soul, passionate and extremely talented with so much more to do,” frequent collaborator Calvin Harris tweetedd. “My heart goes out to his family. God bless you Tim x”

“My sincerest and most heartfelt condolences to the friends, fans and families of @Avicii,” Canadian DJ Deadmau5 wrote. “Banter aside, nobody can deny what he has accomplished and done for modern dance music and I’m very proud of him.”

Pop singer Charlie Puth also honored the late producer, writing, “Wow, I would like to take a moment to pay tribute to the man who really opened my eyes as to what my productions could one day sound like. @Avicii was a genius and a music innovator, and I cannot believe he is no longer with us. RIP to the very best.”

In his short but impactful career, the DJ worked with mega stars including Madonna, Coldplay, and Rita Ora, among many others.

(photo via Christopher Polk/Getty Images for MasterCard)