Malaysian golfer Arie Irawan died in his hotel room aged 28 while competing at a tournament in China, with "early indications" suggesting it was due to natural causes.
Irawan missed the cut at the Sanya Championship but remained on the island, according to a statement on the PGA Tour Series China's website.
As recounted by the governing body, his roommate Kevin Techakanokboon -- getting ready for the final round -- noticed Irawan wasn't moving in his bed Sunday and called another player for assistance.
Later, local emergency services arrived but after 45 minutes of trying to revive Irawan, he was pronounced dead.
"Early indications" are that the "death was from natural causes," the PGA Tour Series China said on the website. But it added that the "coroner has not completed his report."
"This is just a terrible tragedy that affects all of us who are part of a very tight-knit family here in China," Greg Carlson, the tour's executive director, told the website."
"Arie played with us in 2018, his first full year on our tour, and I know he was excited about this season as he continued his professional golf pursuits."
"We are incredibly saddened by this news, and we extend our sincere condolences to his wife and family."
Irawan is survived by wife Marina, parents Ahmad and Jeny and sister Wan Edna.