The Israeli investigation, presented to Russian officials as well, concluded that a number of different Syrian SAM batteries fired dozens of missiles over a time span of approximately 40 minutes, well after the Israeli jets returned to their base. According to the Israeli investigation, Syrian missile fire was towards multiple directions - east inland, west to the sea, and southwards to Lebanon. According to the Israeli investigation, such Syrian use of "wild" missile fire of dozens of missiles, has become prevalent since the shoot-down of an Israeli F-16I in February 2018 and peaked in Operation House of Cards where some 170 missiles were launched at Israeli jets.