On September 4, 2017, the Philippine military announced that Maute had been killed in an airstrike in August 7 2017 during the Battle of Marawi. They cited ISIL sympathizers proclaiming his death as an act of martyrdom on the social media platform Telegram. He was referred to as "Sheik Al Miyahad Abu Al Hassan", an alias he was known to have used within the ISIL network. AFP Western Mindanao Command chief Carlito Galvez Jr. confirmed deaths of all seven Maute brothers in December 2017.