By Justin Udo

PHILADELPHIA (CBS) – A few dozen University of Pennsylvania students walked out of class Thursday in a show of solidarity with undocumented immigrants.

It was earlier this week Penn president Amy Gutmann announced the university is now a sanctuary campus. That means school officials will not let immigration enforcement on campus unless they have a warrant.

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“We are here to celebrate that, but also to let all of the people know that the fight is not over,” says senior Daisy Romero.

She helped organize the walkout as a show of solidarity with students at other universities who want their schools to become sanctuary campus’ as well:

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“This is larger than Penn. Penn for immigrants’ rights is still going to be involved with making sure that we’re bringing to light the issues that are still going to be facing the undocumented community and Philadelphia, and the United States overall.”

Erik Vergas says he’s happy the university is making a commitment to undocumented students, but it’s only the beginning:

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“There is still a lot of details that have not been cleared up. We want to organize a meeting to clear those up.”