There were no immediate details about the release of documentarian Jehane Noujaim, which was confirmed by her lawyer, Ragia Omran.
Film producer Karim Amer said Wednesday that Noujaim -- whose works include "The Control Room," about Al-Jazeera and the United States during the early days of the Iraq War -- was arrested while filming close to the Interior Ministry building in Cairo.
A spokesman for the U.S. Embassy in Cairo, David Lynfield, said Thursday that U.S. diplomats were in touch with Egyptian authorities about her case.
The three college students -- Derrik Sweeney, Gregory Porter and Luke Gates -- were ordered released Thursday, said Adel Saeed, the spokesman of the general prosecutor, but late in the day, they remained in police custody. Read More