Los Angeles ? The leader of a radical Islamic prison gang and three others were indicted Wednesday on federal charges of planning terrorist attacks against U.S. military facilities, the Israeli Consulate and other Los Angeles-area targets.

The four conspired to wage war against the U.S. government through terrorism, kill armed service members and murder foreign officials, among other charges, according to the indictment.

Named in the indictment were Levar Haley Washington, 25, Gregory Vernon Patterson, 21, Hammad Riaz Samana, 21, and Kevin James, 29.

Prosecutors contend the plot was orchestrated by Washington, Patterson and Samana at the behest of James, an inmate at the California State Prison-Sacramento who founded the radical group Jamiyyat Ul-Islam Is-Saheeh.

Washington, Patterson and Samana – who attended the same Inglewood mosque – allegedly conducted surveillance of military facilities, the Israeli Consulate and synagogues in the Los Angeles area as well as Internet research on Jewish holidays. Law enforcement officials have previously said that the military facilities included National Guard sites, though the indictment does not specify.