PGA Tour winner Grayson Murray has died aged 30 after withdrawing from the Charles Schwab Challenge.

The two-time Tour champion withdrew from the tournament in Fort Worth, Texas during his second round on Friday due to illness.

Murray, who won his second title at this year's Sony Open in Hawaii, passed away on Saturday as the Tour confirmed the news through an organisational statement.

"We were devastated to learn – and are heartbroken to share – that Grayson Murray passed away this morning. I am at a loss for words," wrote Tour commissioner Jay Monahan.