Two more former prison guards have been charged with sexually abusing female inmates at a federal prison in Dublin which became known as "the rape club,"​ authorities announced Thursday.

A Justice Department investigation continues into a California women’s prison that came to be called the “rape club,” in connection with what federal officials have characterized as a culture of sexual abuse perpetuated by guards.

Former corrections officers Jeffrey Wilson and Lawrence Gacad became the ninth and 10th individuals charged in connection with alleged sexual abuse at the Federal Correctional Institution in Dublin.