Twenty-four current and former employees of Amtrak filed a class action Nov. 9 with the U.S. District Court for the District of Columbia charging the railway’s Intercity Strategic Business Unit with discriminating against African American employees because of their race.

The complaint is the latest in a string of racial discrimination charges brought against Amtrak. This summer, the company agreed to an $8 million settlement with management employees to resolve race bias allegations, and a third class action involving African American trackmen in the Northeast Corridor is still pending in the D.C. District Court.