At least 30 Egyptian soldiers have been killed in a wave of simultaneous attacks unleashed by Islamist militants, military officials say. Security sources say 11 died when a car bomb exploded at a military post in North Sinai, one of at least six targeted along with a police station. Witnesses report hearing blasts in Sheikh Zuweid and Rafah, with many residents fleeing their homes over fears of grenades. Officials, speaking on condition of anonymity, say the militants also took soldiers captive and seized several armoured vehicles. A Sinai-based insurgency has killed hundreds of policemen and soldiers since the Egyptian army toppled Islamist president Mohamed Morsi after mass protests against his rule in 2013.