A Spanish judge announced Thursday that three former Nazi death camp guards have been indicted for crimes against humanity and genocide.

The men indicted were Anton Tittjung, Johann Leprich, and Josias Kumpf who were all charged in absentia for their role in killing prisoners in World War II.

The Judge, Ismael Moore, of the Spanish National Court had indictments issued international arrest warrants for all three. Kumpf lives in Austria currently and Tittjung and Leprich live in the United States. Moore plans to charge all of the men under universal jurisdiction which is observed by Spain.

Universal jurisdiction is the principle in which Spain can take criminal jurisdiction of the men despite where they may reside due to the fact that the crimes were against Spaniards. The principle of universal jurisdiction is most commonly seen in cases that are forced disappearances, crimes against humanity, terrorism, and torture.