Egypt's security forces shoot dead at least 24 ISIS militants as they hid inside a cave in a mountainous area in central Sinai, not far from the crash site of Metrojet Flight 9268, a Russian airliner the group says it brought down.
Suspected ISIL militants attack checkpoints and an assembly center in the Egyptian city of Arish. Seven police officers are killed, along with a civilian. Four militants also died, including one that blew himself up.
At least seven people are killed, including five Egyptian Army soldiers, a military officer and a civilian woman in two separate blasts in Egypt's Sinai Peninsula. ISIL's Sinai branch claimed responsibility for the attacks on several websites.
At least 13 Egyptian policemen are killed after a security checkpoint in the city of Arish, North Sinai Governorate, came under attack by militants. Ambulances were reportedly subjected to heavy gunfire as they attempted to reach the wounded. The Islamic State's Sinai branch claimed responsibility for the attack.