Universities in Arizona and across the U.S. are halting, postponing or moving study abroad programs as the coronavirus outbreak spreads.

Arizona State University and University of Arizona canceled programs this week and are pulling students from courses abroad.

On Wednesday, the Centers for Disease Control and Prevention said South Korea is now classified as a Level 3 warning zone, meaning non-essential travel should be avoided.

UA has halted its summer programs in South Korea and China this year, and there are no students currently studying abroad in those countries, according to the university’s health website.

The study abroad office at ASU said it is ending its current spring program in South Korea and is bringing students back to the U.S.

As of now, ASU does not intend to cancel or re-route programs in Europe, but the university has said it will monitor developments from the CDC.