Seamus Johnston

A transgender man has filed a lawsuit against the University of Pittsburgh, claiming he was expelled and subject to FBI scrutiny because of a dispute over locker room use.

The lawsuit was filed Monday by 24-year-old Seamus Johnston, of Johnstown. He was born a woman but filed a name change with Pitt in 2011 and enrolled in a men's weightlifting class. Officials told Johnston not to use the men's locker room, and later banned him from the school, according to the lawsuit.