MANILA—Adamson University on Saturday apologized after it received backlash for ordering all its Chinese students to quarantine themselves amid the new coronavirus outbreak.

The school earlier released an advisory, requiring Chinese students, both graduate and undergraduate, to observe a 2-week self-quarantine "to ensure a healthy and virus-free environment."

It also urged Chinese nationals "to postpone all transactions inside the university until Feb. 14, 2020."

"We apologized for the misimpression it may have created," said the university, which has revised the advisory, expanding the scope of those who should be covered by the order.

"All students, staff and stakeholders who have traveled to and from countries with confirmed cases of 2019-nCoV, including China and/or Hong Kong, within the last month, or who may have in close contact or had direct exposure to a potential source of infection during their travel abroad," part of the memorandum read.

Chinese students and guests who are not limited by the above conditions, Adamson said, are allowed to come to school.

The University’s Clarification and Addendum on its initial memo regarding precautionary measures against the Novel Corona Virus. pic.twitter.com/zSX3wcL8mF

— Adamson University (@AdamsonUni) February 1, 2020

Kabataan party-list Rep. Sarah Jane Elago, on her official Facebook account, urged the school to review the advisory.

"Urgent appeal to Adamson University to review this advisory!" she said.

Some online users also slammed the school, describing the memorandum as "racist."

"Apparently, the president of Adamson University wants all of its Chinese students to self-quarantine themselves. Just the Chinese students. That's racist," a Twitter user wrote.

Another user said, "This memo is downright xenophobic."