Mehak Saini said Monday she's standing up for voices silenced during an acrimonious debate that engulfed the Halifax university after the student union pulled out of Canada 150 celebrations in solidarity with Indigenous Peoples.

An open letter, published on Tuesday, and signed by 26 professors in the school's faculty of arts and social sciences, condemns the schools "double standard" on free speech and the threats made against Masuma Khan. 

Masuma Khan is under investigation for a Facebook post she wrote addressing backlash against the student union's decision to not celebrate Canada 150.