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(CNN) - Lebanese authorities have arrested the wife of ISIS leaderAbu Bakr al-Baghdadi - the man spearheading the Islamist terror group's sweeping rampage across Syria and Iraq - said a source with knowledge of the arrest, describing her as a "powerful figure (who is) heavily involved in ISIS."
The woman detained is one of al-Baghdadi's two wives. Her arrest came as part of a "planned operation," according to the source.
A second intelligence source identified the wife as Saja al-Dulaimi. She was detained with her 4-year-old son more than a week ago when they tried to enter Lebanon, that source said.