The NCAA has canceled college basketball’s annual March Madness tournament because of the rapidly spreading coronavirus.

The organization, which oversees the competition, made the decision Thursday after saying earlier this week that games would be played with limited people in attendance. The NCAA said the “decision is based on the evolving COVID-19 public health threat [and] our ability to ensure the events do not contribute to spread of the pandemic.” COVID-19 is the potentially lethal disease caused by the virus.

The move will cost the cities that were hosting the tournament tens of millions in tourism dollars. The decision, which extends to the women’s basketball tournament, comes just hours after professional sports league Major League Soccer and the National Hockey League have canceled their seasons.