Firebombs caused an estimated $250,000 damage Thursday to an orthodox synagogue in an attack the rabbi attributed to anti-Semites emboldened by the Persian Gulf crisis.

Irv Rubin, the militant leader of the Jewish Defense League, maintains an office on the synagogue grounds.The firebombing prompted Mayor Tom Bradley to denounce acts of terrorism and hate crimes. The city also announced a $25,000 reward for information leading to the arrest and conviction of the bombers.