CAIRO—An Egyptian satirist was released on bail Sunday after he faced questioning on charges of insulting Islam and the country's president, further inflaming the bitter feud between Egypt's Islamist leadership and secular opposition.

Bassem Youssef, who on his weekly one-hour mock news show employs satirical political commentary like that peddled by Jon Stewart on Comedy Central's "The Daily Show," fought off throngs of supporters and journalists to report to Egypt's general prosecutor Sunday morning.

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