The following is a chronological timeline of fatal incidents during the ongoing Sinai insurgency, which was invigorated by a period of relative instability and political turmoil in Egypt, beginning with the 2011 uprising against former autocrat Hosni Mubarak. Insurgent attacks, however, intensified significantly following the July 2013 coup that ousted Muslim Brotherhood-backed president Mohamed Morsi and subsequent crackdown on his supporters.