According to Saudi air defense, fragments of object showed it to be a Houthi drone with Iranian specifications that was trying to target the airport.[65] 18 April 2018 – A Houthi explosive laden Qasef-1 drone is shot down over Yemen by UAE army anti aircraft defense unit.[66] 31 May 2018 – A Saudi Arabian Army Aviation Boeing AH-64 Apache helicopter was reportedly shot down by Houthi fighters according to the Yemeni Defense Ministry, both crewmen died in the crash.[67][68] 24 July 2018 – (2) Houthi Qasef-1 drones carrying explosives are shot down by UAE armed forces.