Egyptian security forces stormed the Cairo offices of Al-Jazeera on Sunday, the broadcaster said. Al-Jazeera said some of its transmission equipment was confiscated and one staff member detained.
Egypt's al-Ahram newspaper reported on its website that the new channel had not obtained a permit to broadcast.
Al-Jazeera Egypt, part of the Doha-based network, began broadcasting after the January 25 revolution that led to the ousting of former president Hosni Mubarak. During the protests, security forces stormed its offices and banned the network from broadcasting, accusing it of biased reporting.
Hundreds of Palestinians loyal to President Mahmoud Abbas broke into Al-Jazeera's offices in the West Bank city of Ramallah in January, a day after the media agency released two decades of secret information known as the Palestine papers.
About 250 Abbas loyalists rallied in support of the president in front of the building housing the local Al-Jazeera office on the seventh and eighth floors. A small group climbed the stairs to the station's offices, where they tried to break in. They did succeed in shattering security cameras, glass door panels and station logos.
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