(CNN)The Egyptian army announced Thursday it had killed a key ISIS-allied leader in the Sinai Peninsula. Dead is the head of the Ansar Bait al-Maqdis movement, identified as Abu Duaa al-Ansari, and a number of his aides in airstrikes targeting the ISIS affiliate's strongholds, the army statement said. "They managed to destroy a number of weapon and ammunition stores, and their explosives," said the statement. "In addition they killed more than 45 terrorist insurgents and injured dozens of members." The army did not explain how it confirmed the death or provide any more...