WINSTON-SALEM, N.C. — Black firefighters in a North Carolina city have filed a grievance alleging that white captains talked about running over protesters and a firefighter made a noose during a rope and knots class. 

The grievance filed by Black firefighters with the Winston-Salem Fire Department calls for Chief William Mayo to be fired for failing to discipline white firefighters who, the group said, have created a hostile work environment through comments in person and on social media, the Winston-Salem Journal  reports.