Dangerous weather near Quail Hollow delayed the start of Saturday's third round of the PGA Championship just as Rory McIlroy and Xander Schauffele were preparing to begin play.
Americans Sam Burns and Max Greyserman were about to tee off at the first hole at 8:15 a.m. (1215 GMT) when the horn sounded to signal everyone should seek shelter.
World number two McIlroy, who won the Masters last month to complete a career Grand Slam, and third-ranked Schauffele, the defending champion and reigning British Open champion, were set to start at 8:25 and were on their way to the first tee from the practice area when the horn blew.