This post has been updated.

On Tuesday, Harvard University told its students to vacate the campus by Sunday and not return from spring break amid the coronavirus outbreak in the U.S.

Massachusetts saw a sharp increase of coronavirus cases on Tuesday, leading Governor Charlie Baker to declare a state of emergency.

Starting March 23, Harvard will be transitioning to “virtual instruction” for both graduates and undergraduates, the university’s president Lawrence Bacow said in a statement.

“For the business school, it’s shifting to all online classes after the end of this week,” a graduate student told Yahoo Finance. “Technically there’s a spring break, but there’s a strong discouragement against international travel.”

The student, who is graduating this semester, added that his graduation ceremony is also not looking likely, as the university is discouraging gatherings of groups with more than 25 people.

“It’s all very confusing,” he added.

And while other schools are also pivoting to online instruction, Harvard is taking the aggressive step of asking its undergraduate students to move out of dorms “no later than March 15 at 5 p.m.” (Other schools followed suit.)

Some students expressed their frustration online at being asked to vacate so suddenly.

Others were seen to be a little more upbeat, taking the news in stride.

In the past, despite snow storms and hurricanes, the university had been very reluctant to cancel classes. In 1977, a former dean once said that “Harvard University will close only for an act of God, such as the end of the world.”