Two men have been charged with acting as illegal agents of the Iranian government for allegedly spying on a Jewish facility in Chicago and monitoring American members of an Iranian opposition group, the Justice Department announced Monday.

The men — dual U.S.-Iranian citizen Ahmadreza Mohammadi Doostdar and Iranian citizen and California resident Majid Ghorbani — were arrested earlier this month and charged with knowingly behaving as agents of Iran without notifying Attorney General Jeff Sessions, disregarding U.S. sanctions to provide services to Iran, and conspiracy.