Las Vegas casinos owned by Wynn Resorts Ltd. and MGM Resorts International will temporarily close in response to the growing coronavirus pandemic, shuttering much of the famed Strip.

Wynn Resorts’ Wynn and Encore casinos will close for two weeks beginning Tuesday. MGM Resorts’ eight resorts on the Strip—including Bellagio and Mirage—will close “until further notice,” the company said.

Tourism to Las Vegas has suddenly fallen amid global travel restrictions, cancellation of conventions and sports and public-health warnings to avoid social gatherings. Casino operators had already been shutting down parts of their resorts, including theaters, restaurants, nightclubs and sportsbooks.

Last week, a convention guest at MGM’s Mirage tested positive for coronavirus. Days later, the company said several employees had also contracted the virus. MGM warned employees of imminent layoffs and work furloughs.

Meanwhile, gambling regulators in Massachusetts, Indiana, Illinois, Rhode Island and Maryland have ordered casinos to close to help prevent the virus from spreading. Wynn’s only other U.S. casino, Encore Boston Harbor, and MGM Springfield are both under closure orders by Massachusetts gambling regulators.