Egyptian police on Thursday arrested the Cairo bureau chief of an Iranian news station and a former Islamist lawmaker, security officials said.
Ahmed Fahim Abdel Azim al-Siufi, the Egyptian head of the Cairo office of Iran's Arab-language station Al-Alam, was arrested in an apartment with ex-senate member Essam Ismail Farrag, the officials said.
They were arrested at the orders of prosecutors, the officials said without elaborating on the charges.
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They were transferred for interrogation by the secretive National Security apparatus, which handles serious crimes against the state, one official said.
Thousands of Islamists have been arrested in a broad crackdown after the military overthrew president Mohamed Morsi in July, sparking a backlash from his supporters.
Media organisations seen as sympathetic to the Islamists have also been targeted, including the Qatar-based Al-Jazeera broadcaster's Egypt affiliate.