His older brother, David, flew to the Middle Eastern country to find out what killed him. Police said criminality was not suspected. No cause of death was released.
Avicii, who made $250,000 a night when he toured, had serious medical problems.
The Grammy nominee’s gall bladder and appendix were removed in 2014.
He also suffered from acute pancreatitis brought on, in part, by heavy drinking.
In 2016, he announced he’d no longer tour.
“I am blessed to be able to travel all around the world and perform, but I have too little left for the life of a real person behind the artist,” he said at the time.
In an interview with The Hollywood Reporter, he explained his decision to step back from touring.
“To me it was something I had to do for my health,” he said.
“The scene was not for me. It was not the shows and not the music. It was always the other stuff surrounding it that never came naturally to me.
“All the other parts of being an artist. I’m more of an introverted person in general.
“It was always very hard for me. I took on board too much negative energy, I think.”
In an oft-discussed interview with GQ Magazine, Avicii described his alcoholism that led to acute pancreatitis as stemming from being “so nervous,” and “(getting) into a habit (of drinking), because you rely on that encouragement and self-confidence you get from alcohol, and then you get dependent on it.”