In 1940 and 1941, the "Regia Aeronautica", seeking to disrupt Allied oil supplies, struck British targets in the Middle East, mainly using the CANT Z.1007 and Savoia-Marchetti SM.82 bombers. For a year starting in June 1940, Italian bombers attacked Mandatory Palestine, mainly targeting Haifa and Tel Aviv for their large refineries and port facilities. The deadliest single attack came on 9 September 1940, when an Italian raid over Tel Aviv killed 137 people. While Italian efforts mainly focused on the Mandate of Palestine, one notable mission on 19 October 1940 struck instead at refinery facilities in Bahrain.