Hundreds of people, including Morsi, have been sentenced to death, although most have won new trials. Seven people have been executed.
In Sinai, which borders Israel and the Palestinian Gaza Strip, militants have waged a brazen insurgency that appears unabated despite a sweeping army campaign.
But IS has managed to stage attacks outside Sinai only a few times.
It claimed responsibility for a bombing that killed a passer-by last month at the Italian consulate in Cairo.
And last December, the group said it murdered an American who worked for petroleum company Apache, also west of the capital.
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