US Secretary of State John Kerry with Israeli Prime Minister Benjamin Netanyahu on Saturday (Photo: Jonathan Ernst/Reuters)
The army carried out what it called a "clean-up" operation after Islamists opened fire on an army camp overnight.
The city was now "calm" again, an "African military source" said, adding that the army, "backed by French and African troops, had the situation under control".
1725 GMT: Egypt. President Morsi has prompted speculaton and concern, following outside the Muslim Brotherhood's Cairo headquarters on Friday, with remarks on his Facebook page: "If I am forced to do what is required to protect this nation, then I will do it. And I fear that I might be on the verge of doing it."