Tens of supporters of Egypt's former president Mohamed Morsi protested outside Cairo's Media Production City (MPC) – home to most private Egyptian television and radio stations – accusing the media outlets of bias.
Coverage of the daily pro-Morsi rallies taking place since the president’s 3 July ouster has been noticeably absent on many privately owned channels.
Reports have also circulated that reporters from channels unfriendly to the deposed Islamist president have been attacked at the rallies.
The MPC has been under heavy military and police security since before mass protests took to the streets demanding early presidential elections on 30 June.
Armed vehicles and infantry were deployed to secure the compound. A security source told Al-Ahram's Arabic news website that additional police forces were deployed on Friday and security measures have been tightened at the compound’s entrances.
An Islamist sit-in that started in December and lasted several weeks besieged the MPC after Islamists condemned the non-Islamist media for "inciting violence" and "misleading the public."
The December sit-in followed a call by popular Salafist preacher Hazem Salah Abu-Ismail to demand a "purge" of Egyptian mainstream media.
Islamists protested at the MPC again in March, assaulting several media personalities while demonstrating against perceived "anti-Islamist bias" in Egypt's media.
The March protests were again supported by Abu-Ismail, while the Muslim Brotherhood – from which former president Mohamed Morsi hails – distanced itself from the demonstration, although some members took part.
Abu-Ismail is currently under arrest, along with top Muslim Brotherhood members, for charges of inciting violence against opposition protesters.
Supporters of the president have clashed with security forces on several occasions since Morsi's deposition.