The PGA Tour is expanding the cancellation of its tournaments for another four weeks, extending through the AT&T Byron Nelson that is scheduled for May 7-10, multiple sources have confirmed to Golf Digest. Also, the PGA Championship, scheduled for May 14-17 at TPC Harding Park in San Francisco, has been postponed, said the same sources.

Announcements from the tour as well as the PGA of America are expected as soon as Tuesday.

Members of the Tour’s Player Advisory Committee were on a phone call Tuesday afternoon in which tour officials outlined the plan moving forward. Players were to be notified shortly afterward.

The decision comes as much of the world continued with more cancellations, postponements, travel restrictions and closures due to the escalating COVID-19 crisis.

The new tournaments now to be cancelled include the RBC Heritage at Harbour Town in South Carolina, the Zurich Classic of New Orleans, the Wells Fargo Championship at Quail Hollow in Charlotte, and the Byron Nelson in Dallas.

Last week, the tour cancelled the Players Championship in the hours after the first round at TPC Sawgrass and announced that it was cancelling all tournaments through the Valero Texas Open, which was slated for April 2-5. The following morning, Augusta National followed suit, announcing the Masters, originally scheduled for the week after the Valero, would be postponed, and on Monday the club sent a letter to its members that it was closing the course this week. That brings the total of PGA Tour events cancelled due to the coronavirus to nine.

The news comes after America’s Centres for Disease Control and Prevention suggested on Sunday cancelling or postponing events with 50 or more people throughout the country for the next eight weeks and a day after the PGA of America announced that it was postponing the PGA Professional Championship, which was scheduled for April 26-29 in Austin, Texas.