UPDATE, 2:33 PM: Al Jazeera says it has been facing the wrath of Egypt’s military government since President Mohammed Morsi was ousted last month. Now it’s fighting back — in the courts. The Qatar-based TV network says it is making legal moves in international courts against the Egyptian government for jailing its journalists, jamming its signals and shutting down its offices. An Egyptian court this month ordered Al Jazeera’s Cairo office to stop broadcasting, claiming it was jeopardizing national security by, among other things, airing Muslim Brotherhood protests. The network said in a statement that Egypt’s new regime is out to silence Al Jazeera and urged the UN to “ensure that freedom of expression and freedom of the press do not die in Egypt.”

PREVIOUS UPDATE, 3:58 PM: An Al Jazeera staffer told Reuters that at least five of his colleagues at the Mubasher Misr channel were arrested at the studio. The station was prevented from broadcasting from a pro-Mursi rally, and its crew there also was detained, Karim El-Assiuti said.

PREVIOUSLY: Several live television channels in Egypt including Al Jazeera are off the air in the wake of today’s military ouster of President Mohamed Morsi. Al Jazeera reports that it went dark after security forces stormed its Cairo bureau overlooking Tahrir Square during a live broadcast and arrested the announcer, guests and producers.