Ansar Bait al-Maqdis
On 24 December, 16 were killed and over 134 injured in a huge bomb which hit the Daqahliya Security Directorate in Mansoura, in the worst attack on a government site since the ouster of Morsi in July. Ansar Bait al-Maqdis, a Sinai-based group, claimed responsibility for the attack. The group deemed Egyptian troops infidels because they answer to a "secular government", warning them to desert or face death.