Students at Boston College are staging a walkout from classes to protest recent instances of racism on campus, including two posters that were defaced to say "Black Lives don't Matter."

Video footage shows dozens of students filing into a campus lawn around midday Wednesday and chanting, "Black lives matter."

Students walk out at Boston College #BlackLivesMatter— Emily Sweeney (@emilysweeney) October 18, 2017

The group Eradicate Boston College Racism organized the walkout and says the college failed to respond to racist and hateful incidents on campus.

Two signs were found defaced in a residence hall last weekend to say "Black Lives don't Matter." A racist social media post also circulated around campus.

Administrators say the college "condemns all acts of hate."

Organizers of the walkout say the private Roman Catholic school teaches its students "not to be silent in times of injustices" and to fight against oppression.