NORMAN, Okla. (AP) — Dozens of University of Oklahoma students staged a sit-in for a second day Thursday outside OU's administrative offices following two instances of professors using racial slurs in the classroom.

OU's Black Emergency Response Team, known as BERT, gathered Wednesday morning in Evans Hall and called for the resignation of OU provost Kyle Harper, mandatory equity training for faculty, semester-long diversity training and a new multicultural center on campus.

Some students spent the night in Evans Hall and the group said it would remain there "until these demands are met."

The...