Introduction: On 13–14 April 2024, Iran launched ∼300 drones and missiles at Israel, in an unprecedented attack. As most studies examine the effects of trauma months or years later, less is known about its effects days later. To fill this gap, this study gauged the population response, five days after the attack. Specifically, we examined the prevalence and factors associated with two precursors for later development of PTSD, peritraumatic distress (PD) and generalized anxiety disorder (GAD).