UPDATE 1: Eleven killed in twin bomb attack on Egyptian military in Sinai

Double suicide attack on military intelligence headquarters and army checkpoint in North Sinai town of Rafah kills eleven, injures 17, including civilians

Eleven  were killed on Wednesday morning in a double suicide car bomb attack at a military intelligence headquarters and a nearby military checkpoint in the northern Sinai town of Rafah. The death toll includes at least 6 military personnel and two suicide bombers.

Ten solidiers and seven civilians were also wounded in a "treacherous blast targeting security forces," army spokesperson Ahmed Ali said.
After the initial blast, unknown assailants fired rocket-propelled grenades at the military facility, state TV said.

A second suicide car bomb hit a nearby army checkpoint minutes after the first attack.
The remains of two suicide bombers have been found, state TV added.
Egypt's border crossing with the Gaza Strip was shut in the immediate aftermath of the attack as the armed forces combed the area for suspects, state news agency MENA reported.
The Rafah crossing is the only gateway into the impoverished Palestinian enclave which is blockaded by Israel.

Egypt's military has launched a broad offensive against Islamist militants after an uptick in violence following the overthrow of Islamist president Mohamed Morsi on 3 July. The army has so far killed around 100 militants.